Because it's been suggested so much on TRP, I've been debating starting a martial art for about a year now. I finally took the plunge and decided to join an MMA gym.

I have my first class tomorrow, and I'm starting out taking classes in boxing and BJJ. I'm pumped but also a little nervous, because I have no clue what I'm doing. I'm sure the other guys in the class will be helpful and acknowledge that I'm a beginner (at least I hope).

For those of you that already train, what do I need to know before I go in? I'm going to check my ego at the door, realize I know nothing, and be open to learning. Anything I should bring? And what should I wear?