Some things I've learned over the years: 1. do not show a slide full of code. The font will be too small to read. Nobody will read it 2. don't read your slides to the audience. The audience can read 3. don't talk with your back to the audience 4. make your font as big as practical 5. 3 bullet points is ideal 6. add a picture now and then 7. don't bother with a copyright notice on every slide. It gets really old. Besi…
The audience can quickly tell if someone is there because they want to talk about the topic they're presenting, and having a receptive audience makes it much easier to get on stage to talk about it. If the audience knows you're there because you want another line on your resume or because you're trying to sell them something the atmosphere can turn quite cold and that is a world of pain for a speaker.