Im not sure if this girl really likes me?

my interduced me to this girl last friday i have always seen her but never have talked.At the lockers during homeroom on friday morning she came up to me and we talked and in homeroom she asked me sit by her and by siting by her i have to ditch my guys.she sat with me at lunch and have me a hug at the end of the day.please help me out (o im a horrible spelling in the morning i need my coffee)