Successfully complete one of the following tasks to get a trophy:

Socialite Bronze (Bronze): Play five multiplayer games. 
Sofa Surfer Bronze (Bronze): Play one Sofa vs. Sofa game. 
MyBuzz! Enthusiast Bronze (Bronze): Play one MyBuzz! game. 
Lonesome and Loving It Bronze (Bronze): Play five singleplayer games. 
The Barnard Award Bronze (Bronze): Score over 1500 points in a singleplayer 
game. 
Sofa Subjugator Bronze (Bronze): Win over five games of Sofa vs. Sofa. 
Socialite Silver (Silver): Play 20 multiplayer games. 
Sofa Surfer Silver (Silver): Play 15 Sofa vs. Sofa games. 
MyBuzz! Enthusiast Silver (Silver): Play 20 MyBuzz! games. 
Lonesome and Loving It Silver (Silver): Play 20 singleplayer games. 
The Barnard Award Silver (Silver): Score over 3000 points in a singleplayer 
game. 
Sofa Subjugator Silver (Silver): Win over 20 games of Sofa vs. Sofa. 
Socialite Gold (Gold): Play 50 multiplayer games. 
Sofa Surfer Gold (Gold): Play 40 Sofa vs. Sofa games. 
MyBuzz! Enthusiast Gold (Gold): Play 50 MyBuzz! games. 
Lonesome and Loving It Gold (Gold): Play 50 singleplayer games. 
The Barnard Award Gold (Gold): Score over 5000 points in a singleplayer game. 
Sofa Subjugator Gold (Gold): Win over 50 games of Sofa vs. Sofa. 
Buzz's New Best Friend (Platinum): All Trophies unlocked.