I find it natural and easy to be playful and flirty when I'm alone with a girl. But for whatever reason, when there are people around, I lose my instinct. In particular, for school, I am in a small program, meaning there are 32 of us and we all see each other every day. The girl I like usually sits at the front, and I sit at the back. So the only times we can usually interact is during the 10 min breaks between classes and during lunch.

What kind of things work in this kind of situation? In particular, I am wondering about the kino.