В принципе, это очевидные вещи, но далеко не все их соблюдают:
"1) Exercise - Making your body a lean, clean, aerobic machine, besides giving you time to think, ensures that your brain gets the oxygen it needs. It also gives you some empathy for the poor schlubs that must sit through your lecture, inert brains encased in a desk. Make their time worth it.
2) The 10 minute rule – Your audience fades after 10 minutes. If you have to lecture for 50 minutes, conscientiously change-up every 10 minutes or so. Turn on the lights, show a blank screen and tell a story, have your audience stand up and stretch, anything to reset the 10-minute boredom clock.
3) Pictures beat text – We remember a good image far longer than a string of text. During your talks, show images, speak words. If you need blocks of text for your talk, use handouts."