Is it a bad thing when a girl whispers in her friend's ear?

So I met this girl over fb a couple of months ago, and I found out that she's in 1 of my classes. We never talk in person and I'm not even sure if she know's who I am. Sometimes I would catch her staring at me from across the room. She has a friend in that class and last week I was standing outside class and her and her friend came. I sort of looked at her for like a few seconds and she had a neutral look on her face. Then she began whispering into her friend's ear when she was looking at me. Is this a good or bad thing? Also what could this mean?
It's a good thing (please explain)
It's a bad thing (please explain)
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Is it a bad thing when a girl whispers in her friend's ear?
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