-Don't wear another corps shirts/jackets to the audition camp. I can't even begin to tell you how funny it was to watch kids walk into camp wearing another corps' stuff. It also pisses a lot of the vets off.
-In fact, don't wear stuff that gives a false impression of you. Sure, 'The Mutilated Skull Puppies' might be your favorite band, and their T-shirt with the blood and guts might be the COOLEST shirt ever...leave it at home.
-Don't be afraid to start a conversation with people, whether they're auditioning for the first time or they're aging out as a six year vet. Nobody is there to see you fail, so make friends! My seat partner in '09 and I got along so well because we were both rookies who made fast friends at winter camps. You never know who your best friend in the corps will be in six months, so meet them now!
-Have fun-enjoy the experience for what it is. Audition camps are hard, stressful, nervewracking...but at the end of the weekend, it's just drum corps, which you clearly have a passion for.