WHAT DOES THIS MEAN PLEASE HELP?

So there is this girl who is in my tech class who I caught sometimes staring at me and when I would look back she held some eye contacts and sometimes kept it while others she looked down, when she is around her friends she stares at me, when I saw her by herself she would stare at me for a minute and then looked at my legs why would she stare at my legs though, does she find me attractive or admire me?
WHAT DOES THIS MEAN PLEASE HELP?
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