What should I do / know for rowing in my first regatta?

On June, 26th I have my first regatta. I'm really excited because I will participating in it. It's through the Badger State Games in Appleton, Wisconsin. I'm doing a learn to row program that lasts all summer right now ( well, not right now, right now, but you get the point). So experienced rowers, what should I know and /or do for rowing in my first regatta, because I'm clueless?