After I finish my upper maths and physics lectures, I sometimes ask the prof some questions. On a few occassions a female student was behind listening to my discussion with the prof with no one else around. When I finished asking questions, I left and she left as well without asking any of her own questions. I am male and nowhere near a top student, infact near the bottom or average at best so I don't think she is that interested in listening to my discussion with the prof. She hasn't tried to speak to me. What is giong on?