Not truly a "crossplay" story, so to speak, but some amusing friends about a long haired friend of mine who often gets mistaken as a girl...
One time, he was hanging out in my dorm room playing "counterstrike" on my computer because his wasn't working. The door was open and two guys walked by. One of them commented "Whoa, dude, she's playing Counterstrike!" They started trying to talk to him, and finally one of them said "I don't think she wants to talk to us." (That was about three years ago)
The other time was when he and his girlfriend got asked if they were lesbians. *sweat drop*