This person prefers to go birding rather than watch the game.
John: Yeah, I wonder what it was..
Mike: Well I didn't see it, but judging by your reaction it was likely a great tufted pine sparrow, male of course. It was probably foraging for honeysuckle berries, its sole food source.
Sarah: Oh....(not impressed)
John: Mike, your such a bird nerd!
Stephen: Hey Jeff, are you coming to the party later?
Jeff: Nah, I'm gunna stay in tonite
Stephen: Why? Its gunna be a great party
Jeff: I'm not gunna miss the peak of the Bohemian Waxwing migration at sunrise. I mean, its only the biggest birding day of the year, duh.
Stephen: Oh, I forgot (and don't care).....do you realize your are a huge bird nerd?