So I met this girl at a party who is a friend of a friend. We had a very quick conversation and I left. I actually go to school with the girl and see her quite often, but have never tried to approach her or talk to her. Anyway, I found out she thought I was cute and funny so I decided to add her on FB. She accepted and a day later I sent her a message saying "How come you never say hi to me?". She didn't reply so I let things cool down for a few days and told said I was still waiting on a reply. She didn't reply to this either. Where should I go from here?