Learn your stuff. Study the manual, to learn the rules. Then do research about things you're not quite sure about, or want to know more about.
Also talk to other teams in your area, and build relationships with them. It's great to have someone to go to when you need some help, or if you just wanna hang out and do some team-building.
Most importantly though,
HAVE FUN. Things might get stressful at times, but you gotta get that out of your head, and remember that you're supposed to be having fun.
