How physical do you get when you play

Oh, absolutely.

"Maybe it's just the people I play with but our Smash Bros games can get very animated."

Right on, RAB. That's a sign of good friends, right there. We'll yell at each other and laugh and jump up and down if we're nervous, punch each other mid-match (though usually with a respectful pause), scream and yell insults or jokes at one another.
I have one friend who's as good as I am, and we'll face off sometime (just him and me, no items, on Final Destination). That's awesome, because it gets so ridiculously intense. People will gather around to watch us duke it out.

Most games I'm not too physical with. I'll always, ALWAYS laugh at a game if I find something even remotely funny. I think it's best to be immersed and interactive in a physical sense, too, it adds to the game. Zombie-players annoy me, sometimes (though I can get like that at times). I love playing with my friend James, even if he's just watching me, because he'll crack jokes constantly. It's awesome.

Most games, yeah I'm at least a little physical. I'll bite my hand if I get really pissed (won't throw my controller). Sometimes I move in the direction I'm headed, or lean in toward the screen. I'll talk to people in the game, particularly with stuff like Pikmin, or yell insults at enemies. I have tons of fun playing games

This is why I love DK: JB so much. That game sucks up all the energy I have when I play games, it's awesome.

Jam it back in, in the dark.