So you've graduated from basic riding upright and now you're ready for the tricks (and the falls that come with that). It's awesome no matter how many times you fall. The more falls, the less fear. Don't give up! What helped me tremendously was watching how-to videos. Here are a few instructional videos that should explain two basic wakeskating tricks. Let go! :D
Wakeskating 101: Pop Shuvit
Wakeskating 101: Kickflip
This is the life!
If you have about a half-hour watch Aquafrolics by the Nike 6.0 Wakeskate Team:
Highlights from Parks Bonifay's Double or Nothing contest (Sept. 2010): Mostly Wakeboarding