Rejection Therapy is a game that consists of cards. Each card has a suggestion on what you can do to get rejected by another person.

Like it says, the game is designed to help people get over the fear of rejection (and other irrational social anxieties). By playing a card, you get out of your comfort zone in a very concise, actionable way. It's also hella fun if you're playing with someone ;-)

It's based on a behavioral technique called "flooding": http://www.psychologistworld.com/behavior/flooding.php

EDIT: The cards are optional, and not required to play the game.