I have to give a 15-20 minute PowerPoint presentation to my chemistry class on Wednesday. I'm already done with my slides and I have all my information, but I'm pretty much deathly afraid of talking in front of the class and being graded on my presentation. So:
Are you afraid of speaking in front of other people? How can I not make a total ass of myself? How can I make sure that people aren't falling asleep in their seats while I give my presentation?
And, slightly related, what's your favorite nerdy joke?