hello. I am 23 yrs old girl,attractive. There is a handsome guy in my masters class. When I joined this course about 7 months ago I found him attractive. And fortunately a number of times(like 3 or 4) times I found him staring at me. Now that increased my interest. Around 2 months ago, he and his friend were standing in a queue for getting food. As i went there he moved and also moved his friend to make a place for me in the queue. I could not thank him because I am very shy and had an exam that day. Now for the past 2,3 weeks I am noticing even if he sees me he does not wait there long to see me and casually goes. Today we were giving exam in the same room. he was sitting 1 seat after me. after finishing the xam, I looked at him once but he was looking somewhere else(as if deliberately trying to look away from me).I have never talked to him. Yesterday he added me in a facebook group along with other friends. I thanked him mentioning his name. He didnot put a like on my comment. What should I do now? Because I badly want him but am too shy. should I slow down or try to talk to him. As I am very shy I dont know what to talk about or start a conversation. has he totally lost interest in me? But he is a serious guy and not a flirt.