I caught her staring at me all the time what does it mean?

So theirs this girl in my class and I notice that she stares at me but when I catch her she looks away but today she kept eye contact a little longer and I she shows up early to class like me her friends pay attention to me also she's quiet when I'm in her presence lol what should I do she was staring at me for a long time what could this mean
I caught her staring at me all the time what does it mean?
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