Guy I kissed added me on facebook, what should I do?

[Lehcar.]

I met this guy at my friend's party (he's her housemate). We came early to help set up everything and clear out furniture. I could tell that he was interested since I got there, and he would do little things, but nothing explicit. Later in the night, when we were drinking, he kept coming up to me and then when we were talking he asked if we could talk outside, and he kissed me. He told me that he wanted to get to know me better, and I saw him once after, and he didn't say anything because I was in a meeting. It's been about a month, and he just recently added me on facebook about 2 minutes ago. Do you think he remembers? Should I talk to him, or just accept his request, and then see what happens?