What does it mean when a girl strokes her hair and applies make-up around me?

Anonymous
I was walking towards a bus stop and there was this quiet girl whom I have a class with sitting at the bench. When I sat down she started stroking her hair with her hand and then she started applying make-up although she already had some. We didn't talk though because I was speaking to a friend. I've noticed her make eye contact with me for a short bit when walking out of class and She's always stoking her hair. Is she attracted towards me?

What does it mean when a girl strokes her hair and applies make-up around me?
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