I think she likes me but... what do I do now?

Well there is the girl I'm really starting to like. We have been hanging out with all of our friends (we both have the same group of friends) this past month and a half or so. I am just trying to figure out if she is interested or not, and if she is, how do I tell her I am too. I keep getting the... Show More

She told me the other day that she plans on coming to my formal still.