Girl is outgoing to everyone but me?

A girl I know is super nice, smart, and outgoing. She doesn't seem shy around most people. However, whenever we talk it always seems awkward. For instance I will say "hi" then she will say "hi" back a pause and then "how is it going?" I would reply "Good. you?" Her response, "Pretty good." Maybe a brief comment on school, work and such then we separate. Does she like me? I feel that she does, but she isn't exactly shy. Does she like me or am I imagining things? I wouldn't mind dating her, but it isn't like I am going to ask her out. Please Help
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Just adding a few more details.

Generally in our conversations things start out well. We're friendly and then after a few exchanges the conversation dies off. Also I know a lot of her friends pretty well, but I don't exactly know her.
Girl is outgoing to everyone but me?
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