Is she shy and interested? She keeps sitting next to me in this class?

It's a college lecture, there are literally dozens of empty seats around me and yet she always sits right next to me. If I move a few seats to the right or left in the same row, she'll still sit right next to me. It's happened 3 days now.

But she doesn't say much at all. If she tries to talk to me its about the class or about an upcoming test or something.

Is she shy and interested? It seems like sitting next to someone isn't something a shy person would do. Actually it takes confidence to do something like that. But she doesn't seem to say much or have much to say whenever I try talking to her about something. Why would a girl always sit next to you in a class?
Is she shy and interested? She keeps sitting next to me in this class?
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