Nice street pictures, Michael. People are my favourite subjects except for studio portraits, I'm hopeless at those!
Don't know why but the guy in the second photo makes me think of the film The Third Man. Maybe something vaguely Austrian/ German about him. Whatever, there's loads of character in that face.
With street photos I too usually ask permission if there's time, and get very few brush-offs though occasionally after I've taken the picture someone asks why. I explain I just like taking pictures of ordinary people in ordinary surroundings. They sometimes look a bit puzzled, but they're happy enough with that.
One or two assume I'm using digital and ask to see the picture on the back of the camera. When I explain it's an old-fashioned film camera and you can't see the picture until it's developed they usually say something like "Oh. Well I never." One added "I didn't think anyone used film these days."