Why did she blow me a kiss?

Anonymous
There's a girl I really like at my Salsa class. I don't really know her, and have never spoken to her much except to exchange pleasantries. I'm a little scared to make a move because if she says no I'll still see her every week, or maybe have to give up going to Salsa. Last night she hugged, kissed and said goodbye to all her friends, then turned to me and blew me a kiss. Why?
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+1 y
No, I don't feel left out at all. These other people are obviously her long-term friends, and I am not in that circle, I only met her a few weeks ago.
Updates
+1 y
Her friends are both male and female.
Why did she blow me a kiss?
3 Opinion