A few weeks back I was asked by Lionsgate to sign up at http://www.thehungergamesexplorer.com/ and send in my info. It’s a fan site for The Hunger Games: Catching Fire where the community can interact with each other, enter contests and engage in a variety of activities.
The first step is signing up via Twitter or Facebook, then you can save your District Identification Pass to earn you first badge. Other badges are earned through submitting certain tweets/Facebook posts through the site and other fun challenges (i.e. dressing up as a character for Halloween).
I got my actual ID Pass mailed to me, along with an official memo from The Desk of President Coriolanus Snow, via Capitol Correspondence – The Government of Panem.