Jeans or Skirts?

When you go out to the bars on Friday nights, would you rather wear jeans or a skirt? I have always thought of "sexyness" as a short mini skirt. I know this is just wrong, but I don't feel as cute with jeans on. I guess if you wear a tanktop with a cool design it's a little different. What I want to know is, how do these women look great even when they don't show their legs? I guess I need a new perspective on fashion and style. I need to burst out of this whole "I only want to wear skirts."