Guy plays rock-paper-scissors with other dude across the way.....laughing ensues. Oh cute happiness.
Guy looks at you, smiling very pleasantly. Holds up fist in invitation for rock-paper-scissors match.
Me: ...only if it's Rock-Paper-Scissors-Lizard-Spock
Guy = o.O
On the other hand though, any guy who cannot appreciate Sheldon-humor through not being a Big Bang Theory enthusiast is pretty much worth losing.