How would you respond to a message on facebook like this one I just received?

[Emma]

This was from some total random guy.

"Err hi...I think you might have gone to my elementary school because you look real famaliar and I know you from somewhere but I can't rememember >< Lol well I'm trying as hard as I can not to seem like some creepy stalker, We don't have any mutual friends so that sort of brings down chances that I knew you =/ I know I don't really have many facebook pics they are all mostly way too old.. I can't say for sure you're the same person I knew or not,but its just sort of bugging me because you look so famaliar! hopefuly this doesn't seem THAT strange to you =l

He's the same age as me (15) and he's really cute from the pictures I've seen, he lives in the same city as me...And another very strange thing is that on my facebook profile I have it set as looking for:A relationship, as well as his ALSO says looking for"a relationship"

Thought it was kinda fishy at first, I'm going to reply to him right now =)

If you received the same message in my situation, how would you reply? what would you think?