New girl/help

Okay so I’m bi-curious. This new girl moved to my school today and she’s bi and I kinda feel a little attracted to her. I do have a boyfriend, but I feel like this is my chance to experiment. I added her on snap but idk how to start a convo with her without it seeming weird. I really wanna get close to her and then maybe we can be close enough to try some things. How should I approach her?