Girls or guys anwser this PLEASE?

Well I like this guy Preston then i moved and my friend said that asked about me sometimes but then I came to visit again and I saw him a couple oft times and he saw me but he never said hi? Soo do you think he likes me but he is to nervous or shy?? Or should I be the one who says hi but I act weird around guys?!? But I want him to talk to me? What do I do??(