I am not too sure what to do in situations where I think I have seen the person before, but I am not sure.?

"Have we met?" ...Show more

Kind of depends on the situation. But generally, if you're in a situation where saying something seems called for, you can say something like 'I'm afraid I have a  poor memory for faces. Have we met before? I'm Michael'. or 'You look familiar but I can't place you'....Show more