How to Rehearse a Presentation (and How Many Times)

Most people rehearse by reading their slides or notes silently a few times. It feels productive and does little, because reading and speaking draw on different skills. A useful rehearsal is spoken aloud, from start to finish, under conditions close to the real thing.

How many times?

There is no single correct number, but a workable rule for an important talk is three to five full run-throughs, spread over more than one day.

• Fewer than three and you have not yet found where you stumble.
• More than about ten on a short talk and you risk sounding recited, unless you are deliberately varying your wording.

Spacing matters more than the count. Two rehearsals today and two tomorrow hold better than four in a row, because you practise recalling the talk after a gap, which is what you will do on the day.

What each run-through is for

Rehearsals should not all be the same. Give each one a job.

Run 1: find the talk

Speak it through once with your notes in front of you. Expect it to be rough. You are finding out which parts flow and which parts you cannot yet say. Afterwards, fix the content: cut what felt forced, reorder what felt out of place.

Run 2: time it

Run it again with a timer and no stopping. Almost every talk runs longer aloud than it looks on paper. If you are over, cut whole points. Do not plan to speak faster.

Run 3: put the notes away

Now speak from memory, with at most a card of point names. When you lose your place, do not restart. Pause, recover and continue. Mark where it happened.

Runs 4 and 5: real conditions

Stand up. Use the clicker, the slides and the clothes you will wear if that matters to you. If you will speak to a room, practise projecting. If it is a video call, rehearse to the camera. Small differences in conditions cause more trouble on the day than people expect.

Practise the hard parts separately

After two or three runs you will know your weak spots. For most people they are:

• The opening. Learn your first sentence by heart.
• Transitions. The jump from one point to the next is where speakers stall. Practise each handover sentence on its own.
• Numbers and names. Anything you must get exactly right.
• The ending. Know your last sentence so you can stop cleanly.

Five minutes on these is worth more than another full run of the parts you already know.

Record yourself

A recording shows you what you cannot notice while speaking. You do not need video; audio is enough to hear:

• Pace. Nervous speakers rush. If you are well above a conversational speed, mark places to pause.
• Filler words. Everyone uses some. Hearing your own makes you use fewer.
• Where you hesitated. These are the places to practise again.
• Time per point. One point often takes twice as long as you planned.

Listen once, note two or three things to change, and work on those. Trying to fix everything at once does not work.

An app can do some of this for you. EarHint records each rehearsal on your iPhone, shows which points you covered, where you needed a cue, your pace and your fillers, and lets you jump to any moment in the recording.

Rehearse recovering

The most valuable thing to practise is carrying on after a mistake. In rehearsal, when you blank, treat it as the real thing: pause, restate your last point, and find your way forward. A speaker who has recovered ten times in practice is not thrown by the eleventh time on stage.

The day before and the day itself

Do one calm run-through the day before, and stop there. On the day, run only your opening and your transitions, once. Cramming a full rehearsal an hour before tends to raise nerves more than it helps.

Then trust the work. You do not need to deliver the talk exactly as rehearsed. You need to know your points well enough to say them to the people in front of you.