Michael Lopp wrote a helpful article about how to give a presentation. In it he cites this example where he repeated the same presentation but received two completely different reactions:

A few years back, I gave a recruiting presentation at two different universities on the same day. Same presentation, same general age group of students, morning versus evening.

The morning presentation was in front of a packed room. Just after 10am. I was three cups of coffee into the day and so was everyone else. Three slides in and I knew this was going to be an easy presentation. Heads were nodding, laughs were coming from the least expected slides, and folks were actually taking me up on my offer: “Stop me if you have a question”. Captivated. 40 minutes of slides. 20 minutes of intense, engaged questions and answers. Mission accomplished.

5 hours later. I’m in another conference room 50 miles away in another university and everyone’s coffee has worn off. The room is half full and I’m a little tired, but I’ve done this presentation 30 times in my head, so when I start on slide #1, it’s on. I know this presentation, so why is everyone falling asleep on slide #3? There’s no laughing and, by slide #10, someone gets up and walks out. Ouch.

Rands in Repose | How to Not Throw Up

,