RED: Do not take photographs inside your polling place, fool. Is your Instagram a crime? Likely!
TAN: Do not show anyone a photograph of your ballot or your ballot. These laws—for instance, Oregon's—are commonly phrased as "A person may not show the persons own marked ballot to another person to reveal how it was marked." This is how poll watchers look for forced voting and bullying. Like when your mom checks your ballot to make sure you voted for Glenn Beck or Roseanne or whoever.
BLUE: GO NUTS UP IN THERE. (Do not go nuts. There are lots of grey areas. Do check your state!) Also?