You get AP by getting referrals an maerits, posting to the forums, rating games, and commenting on games. you can see how many AP you have by looking at your profile, which would be here:
Refer to the Help section to find out what gives armor points. Also you can see your stats on your user page. To view your user page click on your name.
you get ap by rating games,posting comments,talking on forum posting games and stuff.You can view your profile by clicking on your name on the top of the screen when logged in.