Girl's Advice: What should I do?

There is a girl that I really like in my gym class. We went to the same middle school so we know each other. Last Thursday when we were playing baseball, she purposely kept missing the ball and she smiled at me. But the way she smiled at me wasn't the friend type smile. Eventually, she hit the ball and scored a run. After, she sat next to me on the grass since we were playing on the grass and we talked for a little bit. By the way, this is not the first time. This is the second time she has walked up to me and talked to me. I don't think she just wants to be friends because I have known her for almost a year and she never once tried talking to me before these two times. But what's bothering me is ever since last thursday, she hasn't tried to talk to me at all. It's been three days if u count today. All she has done is look at me whenever I look at her. I haven't tried to talk to her either because every second she is talking to her friends and i don't want to talk to her while she is with her friends since i don't know them. What should I do? Does she still like me? Should I talk to her or wait? What should I do?Girl's Advice: What should I do?
just give the gurl some space. shell eventually again come over 2 talk 2 u again.cause she sounds like shes head over heals 4 u. so have some confidence!!!!