Hi,
I started Uni and there is a guy in one of my classes that I find attractive, the thing is that I am really shy around guys that I find attractive and the most what I have done is to smile at him whenever our eyes met (so far, he has always smiled back). Also, I caught him looking at me and looking away immediately when I looked back at him and maybe also another time, when I looked down and then turned to look up, it seemed like he looked at me and then proceeded to look at the powerpoint presentation as I moved. Should I really approach him ?