I didn't mention displaying of flesh, janea. Wasn't even thinking of that though, since you mention it, women do tend to show more flesh than men on average. Think formal or office dressing. Women will tend to have expanses of shoulder and bosom showing when 'formally' dressed. Men will not. In both formal and office situations, many women have leg showing. Men do not. Sometimes in office situations women also have a fair expanse of chest showing. Men do not.
No. I was talking of biological display as in birds' feathers and lions' manes. As I explained.
And people, both male and female, comment on this, just as we comment on other animals' displays and why the displays are made and what they are for. We are just another species of animal, so it's not sexist to do the commenting. It just happens to be the female in our species who does most of the visual display stuff.
Making yourself look "nice" is a completely other ball game.