Ten communication
mistakes to avoid

Don’t confuse sending information with genuinely shared understanding and alignment

By Angela Civitella

Updated July 11, 2026

In a world of remote meetings, rapid-fire messaging and AI-assisted writing, a single unclear or careless message can be screenshotted, forwarded, and amplified far beyond your initial audience.

For example, if you send an email without checking it, and later realize that it contained an error, you can end up looking sloppy and unprofessional. But other communication mistakes can have more serious consequences. They can tarnish your reputation, upset clients or even lead to lost revenue.

In this article, we’ll look at 10 common communication mistakes and discuss how to avoid them.

Mistake 1: Not editing your work

Spelling, tone and grammatical mistakes can make you look careless. That’s why it’s essential to check all of your communications before you send them.

Don’t rely on spell-checkers: they won’t catch words used incorrectly. Instead, proofread your work and use tools like grammar checkers or AI writing assistants to catch obvious issues, but remember they can’t fully judge nuance, context or tone; a human re-read is still essential.

It can be difficult to see errors in your own work, so consider asking a colleague to look over key documents before you distribute them.

You may find it helpful to make a list of words and phrases that you find hard to get right (such as “your/you’re”, “its/it’s”, or “affect/effect”). Store this close at hand.

If you often write on your phone, take an extra moment to check subject lines, names, and attachments—mobile autocorrect and small screens make certain mistakes more likely.

It can be difficult to see errors in your own work, so consider asking a colleague to look over key documents before you distribute them. Alternatively, read your work aloud – this makes it easier to catch typos and tone errors. Then, give yourself time to reflect on your document and to make any final changes.

Mistake 2: Delivering bad news by email

Would you announce layoffs to your team by email or IM? If you did, you could upset everyone! Written communication channels don’t allow you to soften difficult messages with nonverbal cues (such as body language), nor do they allow you to address intense emotions immediately.

If you need to deliver bad news, do so in person and think carefully about how you can do it sensitively so you can convey your message while minimizing long-term upset.

If your team is distributed, opt for a video call or at least a voice call rather than dropping serious news into email or chat; this lets you gauge reactions and respond in real time.

When you deliver a difficult message in person, it’s easier to pick up on signs that people have misunderstood key parts of your message or that they’ve taken it particularly badly. You can then take steps to clarify your message or to help people cope with difficult news.

Mistake 3: Avoiding difficult conversations

At some point, you will need to give negative feedback. It’s tempting to try to avoid these conversations, but this can cause further problems – for instance, you may find that a small problem you “let go” soon grows into big one.

In remote teams, avoiding hard conversations is especially risky. Silence is often interpreted as approval, allowing problematic behaviour or underperformance to go unaddressed.

Preparation is the key to handling difficult conversations. Learn to give clear, actionable feedback, and use tools such as assessing the situation, understanding the behaviour and assessing impact – these techniques encourage your people to reflect on their behaviour.

‘Preparation is the key to handling difficult conversations.’

You may also want to role-play your conversation first, so that you feel confident in both your words and your body language.

Mistake 4: Not being assertive

Assertiveness is about stating what you need while considering others’ wants and needs. Digital workplaces can blur boundaries—being assertive includes agreeing on reasonable response times for emails and messages and saying ‘no’ to commitments that overload your schedule or conflict with your values.

You may not always get your way when you’re assertive, but you stand a better chance of doing so or reaching a compromise because you’ve been clear about your needs. Understand what and who to turn down gently but assertively, while maintaining good relationships.

NOTE: Assertiveness is not the same as aggression. When you’re aggressive, you push to get your own way without thinking about other people’s rights, wants, and needs.

Mistake 5: Reacting, not responding

Have you ever shouted at a colleague in frustration, or sent a terse reply to an email, without thinking your point through? If so, you’re likely to have reacted emotionally rather than to have responded calmly.

This kind of emotional reaction can damage your reputation. You may upset people with your strong emotions, giving the impression that you lack self-control and emotional intelligence.

Before replying in a heated chat thread or social comment, pause—write your response in a separate window, read it once for tone, and only then decide whether to send it.

Mistake 6: Not preparing thoroughly

Poorly prepared presentations, reports, or emails frustrate your audience and can, over time, damage your reputation. This is why it’s essential to prepare and plan your communications carefully.

First, set aside time to plan your communication thoroughly. You need to create credible, intelligent, and compelling messages that appeal to your audience’s emotions, as well as to their intellects.

‘Poorly prepared presentations, reports, or emails frustrate your audience and can, over time, damage your reputation.’

Leave time to proofread, to find images, and to check that documents are compatible with your audience’s software. Then, if you are delivering a speech or a presentation, rehearse so that you are fluent and inspiring.

Test your slides and handouts on different devices and platforms—desktop, mobile, and your meeting tool of choice—to ensure your content is readable and accessible to everyone.

Mistake 7: Using a “one-size-fits-all” approach to communication

If you use a “one-size-fits-all” approach to communication, you may overlook people’s different personalities, needs and expectations. In fact, your communications need to address those differences as much as possible.

If you’re preparing a presentation, make sure you appreciate that people have different learning styles and cater to them. This means that everyone – from those who learn best by reading to those who prefer a more hands-on approach – can benefit from your session.

Avoid blasting the same message to every contact—segment by role, region or interest so people receive information that is truly relevant to them.

Mistake 8: Not keeping an open mind when meeting new people

Today’s workplace is a melting pot of ethnicities, religions, ages, sexual orientations, abilities, and viewpoints. These differences create a rich tapestry of experiences and opinions that can greatly enhance our lives.

However, it can be tempting to stereotype new colleagues or clients, or to make assumptions about them based on just a few pieces of information. This is especially true if you haven’t had much time to get to know them well.

Assumptions inhibit open communication because you don’t consider the other person’s own unique background, personality and experience. Over time, this can jeopardize your relationship with them.

So, set time aside to listen when you meet someone new. Give them space to talk about their viewpoints and take time to absorb these.

‘Real communication isn’t just saying something clearly; it’s confirming that others interpreted it the way you intended.’

Cultural intelligence (CQ), introduced by Christopher Earley and Soon Ang, describes our ability to adapt and function effectively across cultures. It includes what we know about other cultures (cognitive CQ), our motivation to engage with difference, our ability to adjust our behaviour, and our awareness of cultural dynamics in real time.

Mistake 9: Assuming that your message has been understood

Always take time to check that people have understood your message. For example, when you send out an email, you could encourage people to respond with questions or to reply if they haven’t understood part of your message.

Or, if you’ve given a presentation, build in time for people to discuss your main points or to ask questions at the end.

Real communication isn’t just saying something clearly; it’s confirming that others interpreted it the way you intended. Build in check-ins—questions like ‘What stands out to you here?’ or ‘How will you apply this?’—in meetings, chats and follow-up emails.

TIP: To check that you’ve been understood correctly, use open questions that start with “how”, “why” or “what”. These encourage reflection and help your audience members explain what they have personally taken from your communication.

Mistake 10: Accidentally violating others’ privacy

Have you ever forwarded a sensitive email to the wrong person or sent an incorrect attachment? These kinds of errors can cause serious commercial problems, violate people’s privacy, and lead to embarrassment and confusion.

To avoid these problems, write sensitive messages before you select the recipient, and then double-check their email address. If your email program automatically fills in email addresses, you could switch this feature off so that you can consciously choose the right recipient.

‘Write sensitive messages before you select the recipient, and then double check their email address.’

You may find it helpful to draft these emails in a word processor or in a blank email, and then paste the text into a new message. This way you won’t accidentally include any information from previous messages. And if you’re sending a sensitive or confidential attachment, check that there are no “tracked changes” or comments, and make sure you’re sending the correct version.

Today, mishandling email addresses and personal data isn’t just embarrassing – it can have consequences under modern privacy laws. Forwarding sensitive emails or links without checking recipients and permissions can breach privacy laws and internal policies.

In Canada, PIPEDA sets rules for how organizations collect and share personal information, so careless forwarding of sensitive emails or contact lists can trigger complaints and erode trust.

Auto-complete mistakes are still common, but shared cloud documents and public channels add new risks. Misconfigured permissions (“anyone with the link”) or posting internal information where it doesn’t belong can expose confidential data to the wrong people, so always confirm who can see a file and whether the channel is appropriate for the content’s sensitivity. Before you share, confirm who has access, review tracked changes or comments, and use secure, access-controlled links for confidential files.

Key points

Everyone makes communication mistakes from time to time, but you’ll protect your reputation by avoiding the most common errors, from not editing your work to accidentally violating people’s privacy to failing to be assertive when it matters. In today’s remote and hybrid workplaces, digital tools and AI can amplify both clear, thoughtful messages and careless ones, so the impact of what you say—and how you say it—travels further and faster than ever.

The key to good communication is to think about your audience’s needs and context. Prepare each email, document, and presentation carefully, use the right channel for the message, and give yourself time to check tone, clarity and accuracy before you share it.
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Above all, remember that communication is a two-way, iterative process. Don’t just transmit information: invite questions, listen actively, and check for understanding so you can clarify and adapt your message when needed.

Over time, avoiding these common communication mistakes will greatly enhance the quality of your messages, strengthen your reputation, deepen your working relationships, and improve your overall job satisfaction.