Do *you* "realize" the tone of your post is a little offensive..?
Sorry, no matter how I try to explain this you probably won't understand since you're not a woman.
Yes, women have a sixth sense. It's called intuition, maybe you've heard of *that*...?
Ask any woman about what I said and she'll tell you.
It's *not* mind reading, it's the (conscious or subconscious) interpretation of subtle clues that a lot of men would probably miss.
And one reason a woman develops this throughout her life is because of the fact that unlike for a man, for a woman the potential of bodily harm in the form of rape is unfortunately a risk that is
always there; it's not something anyone likes to think about but yes, it unfortunately has to be at the back of our mind when we are walking alone at night, or in an unfamiliar neighborhood, etc. That's why it's hard for you as a man to understand this, that women, for example, are able to "sense" when they're being "followed" even though we haven't actually seen the person that's following us. In the same way, a "creepy" man will give off certain signals that may not be immediately visible to a man but that a woman will pick up on, consciously or subconsciously. The way he holds you during the dance, what you see when you look into his eyes, etc., all these things give off clues that women pick up on.
You might have also heard the stories about women who accepted a man's invitation for a drink or a ride home and then that man abused them--the women will say that "they knew something didn't feel right" but they went with him anyway because they thought they were "imagining things".
Same for women in abusive or just bad relationships, they will say that they saw the "red flags" from the beginning but ignored their "gut feeling".
You have obviously not had a chance to learn to understand women--don't worry, you're still young so you have time... (sorry if that sounded offensive, it's not intended to.)
P.S. A lot of men develop this "sixth sense" as well, especially those who grow up in rough neighborhoods, but for the reasons above it seems to be a lot more common in women. Another interesting fact is that people who grow up with abusive parents tend to be *much* better than average at body language and facial expression reading--they can't explain *how* they do it, but they are able to read a person's thoughts very well that way.