I sometimes really feel confused about how girls think.

She sees me interested in her, a colleague added her to Facebook, what could possible be wrong with accepting my friend request, she will never lose anything.

If she is in a relationship already, she will inform me afterwards.
If she is not interested, she will tell me.
If she is not sure from my intentions, she will figure it out after she gets to know me.
If she doesn't know me well till now, she will know me better after we chat on Facebook.

What is the problem? If I was a girl and I see a good interested person, I would give him the chance to express himself, to say what he wants, and If I didn't feel comfortable, there are lots of ways to push me away.

Very strange really.

May I change my profile cover photo with an indirect message to her when she checks my profile?