Looks like you're off to a nice start - please, PLEASE do not do anything ridiculous.
For instance, avoid colored or enlarged text as much as you can.
Don't pick fights with anybody, be friendly towards people and you'll get a good rep.
Don't over post, but at least contribute to topics that you feel a part of.
Oh and one more thing - God forbid if somebody dramas you (if the day comes) - be careful what you post or you'll bury yourself in a hole.