ok well im at school and i have a boyfriend and if i were you ... after about 1 day you hug them (its a must) lol and then you just have a little kiss and if your really in love then when you can...
Mooning someone in school is bad. In school you should be concentrating on learning.
Talk to them. Simple as that.
Ignore them. They will get bored with it when they see it gets no reaction.
put gum in their hair =D