So there is a girl I am studying with. During the class I catch her looking at me which is a usual scenario I encounter but this when caught gives a smile and I smile back. This happen a few times.

The complicated part is she is friendly with everyone and talks with everyone and me included. I am not able to understand what to make out of it? Is she being just nice or is she interested?

Please help with this Your help will really be appreciated.

[Edit 1] She kind of does this with me only apparently