Guide

AI prompts for public speaking: build the talk, then practise it

Published 16 October 2026

A wooden lectern on an empty stage with speech pages, index cards, a glass of water and a clip-on microphone, facing rows of empty seats

Short answerGive the AI your topic, audience and time limit, and ask it to outline the talk slide by slide before you write a word of script. Then use it as a sparring partner: have it predict the tough questions and coach your delivery, not just your slides.

Most people prepare a talk backwards. They open a slide deck first and figure out what to say as they go, so the structure wobbles and the ending trails off. AI is better used the other way round: build the shape of the talk first, in plain text, then turn it into slides and practise it out loud. It also makes a decent sparring partner for the parts that usually catch people out, the Q&A and the nerves beforehand.

None of this replaces practice in front of a mirror, a colleague or a recording. It just means your first rehearsal isn't also your first attempt at structuring the talk.

1. Outline the talk before you touch a slide

Start with the presentation outline prompt. Give it the topic, the audience, the time you have and what you want people to do afterwards:

prompt — 5 blanks

Act as a presentation coach. Build a slide-by-slide outline.

Topic: [TOPIC]
Audience: [WHO THEY ARE AND WHAT THEY CARE ABOUT]
Length: [MINUTES]
Goal: [WHAT SHOULD THEY DECIDE OR DO AFTERWARDS]

For each slide give a headline that states the point (not a topic label), 3 bullets of supporting content and a suggested visual. Start with a hook and end with one clear ask. Keep to a maximum of [NUMBER] slides.

The useful part is asking for headlines that are full sentences, not topic labels. "Q3 revenue" tells a reader nothing. "Q3 revenue grew 12%, mostly from one client" tells them the point of the slide before they read a single bullet. If someone only skims your deck afterwards, these headlines are what they'll remember.

2. Write the opening and the ending first

The first thirty seconds and the last thirty seconds are what people remember, and they're also the two parts people write last, under pressure, the night before. Write them early instead. Ask the AI for three different openings: a question, a short story and a surprising fact, then pick the one that fits your voice. Do the same for the close: a call to action, a one-line summary, or a callback to your opening line.

3. Rehearse the actual speech, not just the slides

Once you have a script or a rough transcript, use the speech coaching prompt:

prompt — 3 blanks

Coach me on this speech:

[PASTE SPEECH OR TRANSCRIPT]

Audience and occasion: [AUDIENCE]
Time limit: [MINUTES]

Give feedback on structure, opening, clarity, stories and ending. Suggest cuts to fit the time, mark where to pause and emphasise, and rewrite the opening and closing lines in two options.

Say the speech out loud and record yourself, even roughly on your phone. A transcript of what you actually said, including the parts where you trailed off, gives far better feedback than a polished script you never spoke. The AI can't hear your tone or watch your hands, so treat this as a edit pass on your words, not a verdict on your delivery.

Time yourself with a stopwatch at least once before the real thing. Almost everyone runs long in rehearsal and even longer live, once nerves and audience reactions slow the pace.

4. Prepare for the questions, not just the talk

The Q&A is where most talks fall apart, because people spend all their prep time on the slides and none on what happens after. The Q&A prep prompt fixes that:

prompt — 3 blanks

I will present on [TOPIC] to [AUDIENCE]. Here is my summary:

[PASTE SUMMARY OR SLIDES]

Predict the 12 most likely questions, including three hostile or tough ones, and suggest answers of 30 seconds each. Add a technique for buying time when I do not know the answer.

Practise the three hostile questions out loud until your answer doesn't sound defensive. A good technique for buying time, such as repeating the question back in your own words while you think, is worth more in the room than any extra slide.

5. Deal with the nerves separately from the content

Nerves and content are two different problems, and it helps to treat them that way instead of hoping a better script will fix a shaky voice. If the fear is bigger than one talk, such as a general discomfort with speaking up, the 30-day confidence plan builds small daily practice outside the pressure of a real event:

prompt — 3 blanks

Create a 30-day plan to build my confidence in [AREA, e.g. speaking up at work].

What holds me back: [FEARS]
What I have already achieved: [WINS]

Give small daily actions that gradually stretch me, reflection prompts, ways to handle setbacks and a review at day 30. Keep each action under 10 minutes.

Small, low-stakes reps, like speaking up once in a small meeting, build the same muscle as a big talk, with far less risk if it goes wrong.

6. Before and after the talk: small talk

The minutes before you go on, and the mingling afterwards, can be harder than the talk itself if you don't know what to say. The small talk starters prompt gives you openers that don't sound scripted, plus a graceful way to end a conversation and move on:

prompt — 2 blanks

Give me small talk starters for [SITUATION, e.g. a networking event / wedding / a new office].

I feel: [E.G. SHY, AWKWARD]
Include 15 openers, follow-up questions, ways to move on gracefully, how to join a group and how to exit a conversation politely. Keep them natural and not scripted-sounding.

Use the follow-up questions more than the openers. Most awkward silences come from running out of things to ask, not from a weak first line.

Common problems

The talk feels like a list of facts. Ask the AI to find one story or example per section; a concrete example sticks far better than a general statement.

You're over the time limit. Tell it your actual time over in rehearsal and ask for cuts ranked by what the audience would miss least, so you're not guessing what to drop.

The Q&A answers sound defensive. Ask for the same answer "in a curious, open tone instead of a defensive one" and compare the two versions side by side.

Where to go from here

If the talk itself is a wedding speech or a toast rather than a work presentation, see AI prompts for a wedding speech instead. For the discomfort that shows up in meetings and difficult conversations more broadly, AI prompts for setting boundaries covers related ground. The full set of prompts here lives in the chat and writing prompts collection, and the prompt builder can adapt any of them to your own talk.