I can think of so many responses to each of these comments. Next time try it, and just see where it goes. That's how you make new friends . . .

A sub and I were out to dinner at a very upscale restaurant and he had his custom made collar on. The female server commented on the collar and asked what color the leather trim was. We told her it was dark green and she replied with "My collar is blue". We returned to that restaurant several times just so we could interact with her. You never know what can happen from a random conversation.