[lost in my little head]

Me and a guy that I have liked for a while have past the looking at each other but too scared to talk stage but now that we talk a little in class I feel like it is going no where. I know he's not ready for a relationship and neither am I but I think we both have more than friend potiential. What I want to know is how do I get into a more comfortable situation where I could be able to talk to him but not come off strong? I want to know how to get to know him better but keep it casual but not just friends casual.