sometimes, some of us I think even we don't wear armure we feel or let live inside us a knight - ideals high over small things. Little Don Quixote... walking between us - curiously or not, I am one of them
What a fantastic suit. I'm envious. Those sorts of people are usually very friendly. I don't think they would hang out in public dressed like that if they didn't want to be approached, or at least I don't. I'm sure you could have asked to take some pictures so you could take the time to line up your shots and such.
Let me make a guess here - worth only a guess: He was a performer who was taking a break, and she was his girlfriend. So I am not sure he would have been willing to pose during his break, but I am sure he would have been friendly.
That makes a lot of sense. It's all about intuition an good judgement and you've proven to have enough of both in the past. Obviously I know the full context even less than you do, so I was just making some assumptions based on my own experiences wandering around in public in a suit of armor.