Been placed next to a girl I find attractive in a non-serious class. It was my first class with her today and she’s very receptive, showing ioi’s and she was in my frame throughout. I can tell she dtf, I’m just tryna fuck now

Question is how would I escalate in class, e.g. get her to give me a handjob. Do I start by light touching her first then maybe rubbing her thigh or straight to rubbing her thigh, or grabbing her hand onto my dick?