Well, ah... if I were paying attention, if I've actually
looked, then I might be able to recognize one. I could definitely pick my husband's out of a crowd. But I can tell you, for example, that I was once with an uncircumcised guy and didn't even notice (I later asserted to a group of friends I never had been, and he took the opportunity to correct me
) so it's fair to say it's not something I scrot--er, scrutinize.