Help.. boyfriend help..?

Ok. heres the story. My boyfriend and i have been dating for almost 3-4 weeks now. Lyk 4 of our friends know that we've been going out. But, my other friends don't know. Valentines day is coming up and i have no idea whats going to happen. Theres a dance. && i think that we will both probably wanna dance wit each other. Our school is very problematic and they create alot alot of drama. So does anyone have any advice about how i should handle this situation and what i should do?