How to act with this guy?

I met this guy at a party last week, and I started to develop a crush on him. We made out, and now he's going to the same kickback I'll be at tomorrow. I'm wondering how I should act so he knows that I'm a little interested in him, and not just looking for another hookup? The thing is, I want to get to know him better and hang out outside of the party scene, but I'm not sure how to go about that.