A girl at the gym pulls her shirt over her butt around me?

Anonymous
She really pretty and I see guys checking her rear end out all the time. But often, when I see her, she'll look away fast and start smiling and pulling her shirt down to cover her bum.

On face value, that behavior seems like a girl who does that thinks the guy is a creeper and is trying to hide her butt from his pervert stare. But... She always has this cute shy smile around me, stealing glances and looking away fast. Any idea why a girl would do that (pulling her shirt down over her bum), around a guy she keeps smiling around and peeking at?
A girl at the gym pulls her shirt over her butt around me?
2 Opinion