u/i_am_nonsense

I play online quite a bit. 1150 on chess.com. Going to my first tournament on Saturday. I'm playing as U/900. I mostly play 1. e4 2. Bc4 as white and 1... g6 2...Bg7 as black. Are there openings I could look into real quick to improve my chances? Any traps I should look out for?

Any tips for a first time tournament goer? Common courtesy? (I'm an Adult American man if that matters)

Cheers