Easy "Bluff" Achievement:

You can get 1- achievement points for successfully bluffing two Wild Draw Four cards in one game, but this is very difficult to get, because most players know when you are bluffing and the CPU can see your cards. To get around this, get three friends together and play a four player game on Xbox Live. Agree beforehand not to call each other's bluffs, and continue playing until all four of you have the achievements. Do not end the match or you will have to start all over.