Optical illusion of a girl spreading her legs. Just a bad choice of positions for all on the couch that I'm sure nobody ever realized. Ooops. When it comes to body language, crossing of legs when standing is a sign of submission. Let me explain. What does it mean when a girl crosses her legs while standing when she's talking to you? They are well spread out either; . I'm young, and I don't do any sports. How can I be very frank, while talking to girls?