Is it creepy to talk to a girl who's always alone?

There's this girl in my class in college who's always alone and I think she doesn't have friends, I think she's really pretty and I want to get close to her.
The thing is that she's always alone in class, so would she think i'm weird or creepy or that i'm a bother if I talk to her out of nowhere?
Sorry if this question is stupid but I don't have experience and i'm really shy.
Is it creepy to talk to a girl who's always alone?
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