Hmmm - welcome to TM (you might like to post a little about yourself in the 'Introductions' thread, if you get a spare mo, so we can see what past experience you have, current skill-levels etc).
Your question is just way too general to actually answer, without fear of breaking our anti-exposure rules, I'm afraid.
I believe that Penguin Magic put out a Raven DVD, with many presentation and performance hints and tips - I'm pretty sure this would be the best place for you to start!
Hope this helps
Rob