I found what works best is to 'kill 'em with kindness' Getting mean is what it takes with some people but it's not right for every situation. If you can poke fun at yourself, too, it helps. People will question me and I just smile and nicely say "Aw, I'm just an old relic. I never felt the need to move past the fifties" people usually just smile and chuckle and then ask more questions about the attire. It's a good icebreaker.