<human>: Could you distill the essence of the text into 1-3 sentences?

There's this girl that I wouldn't mind getting to know problem is, I have no classes with her and I only see her 2-3x a week on campus 
But whenever I see her she has headphones in. I know she's attracted to me because I used to be on tinder a few months ago and we matched but I deleted my account and wont be using it again. When I do see her we exchange smiles but she aways has headphones in and I don't want to be rude. I added her on fb a week ago and she accepted within mins. Would it be acceptable to hit her up on Facebook? And if so what should I say? Or do I have to keep hoping she doesn't have headphones in one day?
<bot>: I have a little crush on a girl and I'm not sure how to approach her since she always has headphones in.