In public, I'm pretty chill. In private, I'm still pretty chill, but a close game or a playoff game will get me jumping up and down occasionally. There is a video of me floating around somewhere, taken during the Broncos - Pats championship game, where I am audibly moaning and dramatically falling to the floor with my hood pulled over my head after Gronk got a TD towards the end of the game. Always good for a laugh.
I've been similar to Chad recently. I've generally resigned myself to the fact that we're not going to beat the Pats/Steelers so I don't get nearly as upset when we lose.