I went to a wedding on Wednesday. Had a brilliant time, it was one of my oldest friends so there were a fair number of people there that I knew. I got chatting to a chap there and we had a bit of a dance and a flirt. Nothing happened apart from a little peck on the cheek at the end of the night. He's added me as a friend on FB- that was yesterday but hasn't sent a message.
Would it be a good idea just to send a little friendly message to say hello or should I just leave it?