Is she repulsed?

When she laughs, I look at her and she looks back at me. But when our eyes meet, she looks away. Why did she do that (shy, repulsed)? Also when this guy sat next to her and he extends his feet next to her, she keeps her feet away. Is she repulsed at that guy? On Tuesday, should I decide to sit next to her and talk to her, playing footsie with her?