CHEM 790 - Graduate Seminar II
Check out these videos (35 individual videos, ~1 hour total time) for some advise on how to handle the audience and how to physically deliver your talk
Effective audience interactions Physical delivery for good presentations
Dr. Michelle Dickinson also has several good Youtube videos on presenting and presentations (long, but worth the time). Here are a couple of good ones.
Public speaking for quiet people How to rock the stage
Other resources to help you both improve your slides and your delivery:
The Craft of Scientific Presentations Ken Suslick's Seminar on Seminars
Melissa Hines's Scientific Presentation Skills
And from PHD comics...

