How can I be more comfortable around this guy?

Okay, so there is this guy I really like and I am going to see him tomorrow at church. I think he may be interested too but I get so nervous whenever I see him. He always comes up to me whenever he sees me to talk, and he gives me hugs, but I just get really nervous and I feel like I make things really awkward. How can I be more comfortable around him? What are some things to talk about with him? Please help! thanks. :)