Award Magnet Achievement
You get this achievement when you receive 100 Fun Trophies or Game Trophies (Badges). Both types of trophies count towards this achievement.
Over time, you may eventually collect 100 trophies, but not many people on the site use this feature. The easier way is to have a friend send you 100 trophies.
To do this, have your friend follow the steps in my blog on Giving Trophies
You can see what trophies you have already received in Home Menu -> Awards -> Cheers and Home Menu -> Awards -> Badges