Hello, I'm from Germany, so please don't be upset because of my bad english.

I have some questions about shy girls:

What does it mean if girl is avoiding eye contact with me and making EC with everyone else (including men ) and glances at me occasionally when she supposes I cannot see it?

She tries to make short EC when is at the end of the classroom, but when is closer to me this never happens...

I've also noticed that she started to slightly mirror my body language ( and so does her best friend ). She also very often sits or stays in place which she can clearly see me during free times between lessons. When she sits her foot is often pointing to my direction ( her friends does the same sometimes ).

Is she shy?

She hates me?

or

She have "crush" on me?

How to test how she feels about me? I will be on a party with her on the next Monday, any suggestions?