when people come up to me and wonder what I'm doing with that antique camera i like to use it as a teaching moment -- they're obviously hoping to learn, and one way you learn is by studying folks better than you.

So, next time, tell them to come over, see what you're doing, take it as a compliment. Then explain why, give them some pointers. If you're half as good as you seem to think you are you should know that just clicking the shutter from the same spot, even with the same camera/lens/film, doesn't mean they get the same result.