Go to a concert or stadium and take a picture in which a crowd is visible in the background. Choose easy, medium or hard difficulty for your next step.

Easy: You have to flash your intimate area (Female: Boobs or vagina; Male: Penis) with a visible crowd in the background. [10 NIP-Points]

Medium: You have to be bottomless. Women can also choose to be topless instead. [20 NIP-Points]

Hard: You have to be completely naked. It is allowed to wear a pair of socks and shoes.  [30 NIP-Points]