Yes, yawning will often work to pop your ears. If it doesn't, try inhaling, then closing your mouth and holding your nostrils closed with your fingers, and gently exhaling.
Try to stretch before you dance. This should get your joints prepared for the actual dancing. They may still pop, but over time, they will get used to the dancing.
You could use a glitter or frosty eye shadow color to compliment the dark eye shadow. Add a dash of the color to the inner-corner of your eye, or tap...
