Common mistakes people make when switching to public speaking for the first time

Why the first talk usually goes sideways

Most people who get asked to speak in public for the first time are good at their job. That's usually why someone asked them. But being good at a job and being good at describing that job to a room are two different skills, and the gap between them causes most of the trouble.

Below are the mistakes that show up again and again, along with what actually fixes them.

Mistake 1: Writing the talk like an essay

A lot of first-time speakers sit down and write out full sentences, then try to memorize or read them. It sounds stiff because written language and spoken language are not the same thing. People read with commas and semicolons. People talk in short bursts, with pauses, and they repeat themselves on purpose.

What to do instead: write an outline, not a script. Bullet the ideas in order, then talk through them out loud, multiple times, letting the wording change slightly each time. By the fifth run-through the words will be yours, not borrowed from a page.

Mistake 2: Starting with an apology or a disclaimer

"I'm not really a public speaker, but…" is one of the most common opening lines, and it is the worst one. It tells the audience to lower their expectations before you've said anything worth judging.

Open with the point, a question, or a short story instead. Save any self-deprecating humor for later, if at all.

Mistake 3: Trying to cover everything

New speakers often treat a talk like a report: if it's true and relevant, it goes in. The result is a talk with twelve ideas, none of which land, because there's no room to slow down on any of them.

Pick one idea. Maybe two. Everything else gets cut, even if it's interesting, even if it took a long time to research. A talk that makes one point clearly beats one that makes six points quickly.

Mistake 4: Practicing in your head instead of out loud

Reading through notes silently feels like practice, but it isn't the same skill as speaking them. Timing, breathing, and where you stumble over a phrase only show up when you actually say the words.

Practice standing up, out loud, at the pace you'd actually use. Time it. Most first drafts run long, and the only way to know that is to run the clock.

Mistake 5: Ignoring the room

A talk written for a boardroom doesn't automatically work in a gym, a webinar, or a wedding reception. New speakers often prepare one version of a talk without asking who's actually going to be there, how big the room is, or whether people will be standing.

Ask a few questions before you write anything: How many people? What do they already know? Is this the first talk of the day or the last? A tired afternoon crowd needs something different from an alert morning one.

Mistake 6: Treating nerves as a problem to eliminate

A common assumption is that good speakers aren't nervous. Most are. The difference is what they do with it. Brad Hisle, founder of Pinnacle Health Group in Los Angeles, has spoken about public speaking as a skill built through repetition rather than a talent some people are simply born with, which is a more useful way to think about nerves: they fade with reps, not with willpower.

The practical version of this: don't wait to feel ready. Take the smaller opportunities, the team meeting, the short update, the toast, before the big one shows up.

Mistake 7: Ending without an ending

Talks that trail off with "so, yeah, that's basically it" waste everything that came before. The last thirty seconds are what people remember and repeat to others afterward.

Plan the ending as carefully as the opening. A short summary of the one idea, a direct ask, or a line that connects back to how you started all work. Just don't let the talk run out of gas on its own.

What to prioritize if you only fix one thing

If nothing else, fix the outline problem. A talk built from bullet points and practiced out loud will survive nerves, a rough room, and a shaky ending. A talk that's memorized from a script will fall apart the moment any of those things go wrong, because there's nothing underneath the words to fall back on.

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