One guy I have played with a few times has betting patterns I watch. A Check/call BB only he wants a cheap flop and has nothing, 2x-3xBB bet he has connectors, suited, or a couple face cards, and he ships his chips with Ace and anything. I visit a few
casinos so I won't say where and when he plays, but it is fun to know these little things.
I am told I look at my chips from the corner of my eye when I hit a solid flop but I refuse to be that unibomber looking guy wearing shades inside. If people catch me great, but it does add to my bluff potential since I have been called out on it. Haha