How do I behave at a concert?

So I am planning on going to Bamboozle on May 2. Anyways, this would be my very first concert. Is there such a thing as concert etiquette? Because I would rather just push my way through than show up four hours earlier. Pushing through wouldn't be a problem for me, I am big and strong (at least for a girl) and my friend told me some tips : say things like "my boyfriends up there" etc . . . anywayz, can I get in trouble for that?