This guy I talk to frequently mentions going to the gym?

Do guys ever mention that they work out to try to impress a girl they like or show off a little? Such as "Oh yeah, I've been really busy lately, especially since I always try to make time for the gym..."

Also when I'm around him he does this thing where he sort of stretches and pats out a rhythm on his stomach? Usually if we're in a group and he's not the one talking. Haha sounds weird I know, but he doesn't do it in any other situation.
This guy I talk to frequently mentions going to the gym?
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