Does she like me and if ya what to do?

She likes you. Go up to her and say, "Hey, want to eat lunch with me?" At this point, she will blush and all her friends will giggle. Then she'll look at her friends, and then say yes. Then you'll go off together to some place you have picked (which, ideally, is separated without being creeper-ishly far away). Then you'll ask her out.