How can I find more information about a guy that I met at a concert?

Two days ago I went to a concert and there I met this guy from Monaco. He was speaking spanish… I think.
He was a total cutie and all that. We danced and had a great time. But then when he was leaning in for a smooch I cut him off, and the reason was I was shy. Now thats the only thing that I know about him, from Monaco, speaks spanish and no more. I don’t quite know if I heard rightly but I think he sometime said that he was visiting.
I really liked him and it was very stupid of me to cut him off. Now I can’t think of anything else.
Help!