I have a list, but I don't do all of these very frequently. I'm kinda listing everything I have done or currently do:
*I love saying "GET OVER HERE!!!"
*I usually say "TIGER!" around my friend Jacob, as he hates Street Fighter, and anything to do with Sagat enrages him.
*I can usually be heard whistling/humming almost any song from Silent Hill that doesn't sound like a power drill. Favorites are "Promise" and "Acceptance".
*I commonly say "Would you kindly..."
*When I hold things, I usually hold them like Gordon Freeman holds his crowbar.
* I love walking around like Sam Fisher. What can I say: He's that awesome.
*Sometimes I randomly move my eyebrows and shift my eyes side to side. Ring a bell?
*Whenever something goes my way, I either say "PERFECT" like the announcer in Street Fighter or jump in the air, pump my fists up and yell "YEAH!!!", not unlike
*Whenever someone dies a particularly gory death in a movie, I always say "FATALITY."
*Whenever I get hurt in a way that should hurt a lot but really doesn't, I say "I'VE GOT BALLS OF STEEL."
*I love quoting the Doom comic, but I don't usually get the chance.
* I enjoy using ridiculous amounts of hand gestures like Vincent from SH3 sometimes.
*I occasionally use GLaDOS quotes when they fit, using that same mechanical monotone.
*I have a jacket that looks like Phillip's from Penumbra. Eh, I guess a lot do, but that's how I like to think of it.
*When I make Toast or waffles, I usually squeal "TOASTY!!!"
*I'm not sure if "You shouldn't have done that..." counts.
*I absolutely love repeating the terible voice acting from the first Resident Evil, especially Barry's.
Also, your title made me lose the game.