TJ Walker (from a 2016 live stream) argues that everyone should rehearse PowerPoint presentations on video using readily available devices (phone, laptop, tablet). He advises recording, taking notes of what you like and dislike, then iterating until you genuinely like the recording—repeating as many times as needed—to build confidence and outperform most competitors.
Chapters
You've no doubt heard the advice that, if possible, rehearse your PowerPoint presentation on video. Well, this is horrible advice. Not because practicing on video is possible, but because it's often prefaced with a statement, if possible. I'm sorry, folks. This is not the 1970s. You don't have to spend $50,000 buying a video camera or spending $60,000 hiring a TV production crew. You have a video camera. It's on your cell phone. It's on your laptop. It's on your iPad. So I think, frankly, it is insane and wildly irresponsible to ever deliver a PowerPoint presentation if you have not first practiced on video. Now, here's the key to practicing your PowerPoint presentations on video. And everybody gets this wrong. It is, frankly, almost a waste of time to practice it on video, watch it, and make a note of things you don't like. All that does is discourage you, saps you of your confidence. What you've got to do is record at once. Make notes of what you like and what you don't like, then try to do more of what you like. Keep practicing it on video until you like what you see, until you're convinced it's the best it can be, till you're convinced that your speech is interesting and memorable. Maybe you got to do it five times, maybe you got to do it 25 times. Guess what? Your audience doesn't care. They simply want you to do the best you can. There are few guarantees in life. But I guarantee you this. If you practice your PowerPoint presentation on video until you get to the point where you can look at it and you genuinely like it, you're going to be filled with confidence in your presentation, and you'll be better than 95% of your competitors.