A little opinion on this, pleazzzzzzzzeeeeeeeee!!!?

Okay, so I was working today and this cute guy came in. I work in a bookstore, by the way. Anyway, he wanted to trade some books, but he didn't have them with him, so I had to jot down his name and email. Anyway, I'm thinking of emailing him, so what do you think? I talked to him only a bit, but it was because I was working and wanted to remain professional. I know that there's no harm in emailing him and possibly volunteer to show him around, but I need some opinions. Soooooo should I do it? And do you think it's intimidating for me to do so?