I don't know what to do with this girl.?

A new friend comes to our class, we are both 14 and she is pretty. What do you think about this girl? She always tease me, and calling me Loempia and then she say she want it and just ask me to show the loempia, then sometimes she took my beanie or things and throw it to my face and then she say sorry. THen sometimes she act sex in front of me and my friends. But sometimes we catch eyes contact and then she smiled to me with no reason. And she laught alot. Well did she hate me or she like me?