In public, I want to be impressed by a woman, not aroused by her. It does not take much visually to arouse me and I am sure this is true of most men (emotionally mature - heterosexual - men), and it is very difficult to turn this emotional reaction off.
Sexually immature language (any profanity, off colour remarks and references, crudeness and rudeness), dress (too revealing high and low), and attitude (flirting, teasing, overly affectionate as examples) all are most often very inappropriate in public by anyone but especially a woman. I stress this because of the pronounced affect their behaviour has on males of which most often these women are fully aware. I believe that such behavior by men directed to women is no less inappropriate, though.