I have this girl in my class.this girl likes boys so one day she came to me and asked for a hug.and I want to date her .

must I date her

You do not have to date someone just because they ask for a hug or show interest in you. It is important to make sure that you have genuine feelings for this girl and that you both share a mutual interest in each other before entering into a relationship. It would be best to get to know her better and see if you have a connection before making a decision about dating her. Remember that it is always important to prioritize your own feelings and boundaries in any relationship.