I had a similar experiance last summer. A couple times a week I'd take a 2 mile walk around the main downtown area after work, and on one occasion while passing by the ice cream place a girl of the same age or perhaps a little younger laughed with glee, leaned foreward, pointed, and announced for all the world "He's wearing a skirt!!!" I was quite amused by the whole thing, and was walking at a fairly brisk pace, so I just kept going.