But one of those tips is:
Don't be afraid to take some risks!
And I talk specifically about using humor in our presentations, while also making sure that the humor is directed at oneself or one's product/technology. NEVER MAKE FUN OF YOUR AUDIENCE.
I also suggested, in that same vein, that you should not be afraid to appear ridiculous, silly, whatever. People learn from other people, and the less you are like a robot, the more people will like to listen to and learn from you.
To prove beyond a doubt that I really, truly mean that, on my most recent two minute tech tip with Bob Rubhart of OTN, I decided to sing, live, the lyrics to PLSQLville, sung to the tune of Jimmy Buffet's Margaritaville.