Rule #1: NEVER wear leggings with a short top.
I say this at least three times a day-leggings are NOT pants!! Leggings should really be worn under other bottoms, in my opinion. If you can't give up the comfort of leggings, go for jeggings instead. These look like jeans, but are made out of a material that feels like jeggings, but is still not showing your "fun". This also goes for too-tight bottoms, especially shorts. If we can see a distinct triangle, there is a problem. Camel toes and cracks>>>not cute.