Many times I have been walking down the street, in the Mall, or some other public place when I would see a person 100 yards away. That person would be so far away that I couldn't tell ANY detail about them yet instantly I could guess if they were Male or Female and despite not being able to see them well, I was right 99.8% of the time. So what is it that tips us off to someone being male or female? I don't think it's the hair. I've seen many men with long hair and many women with very short hairstyles but I "guessed" them correctly. I don't think it's body size, I've seen many small men and many large women & guessed them correctly. So what is it that makes us identify someone as being male or female when we see them? I really want to figure this out. If I can figure that out, maybe I could enhance my feminine appearance. So what are your opinions?