Compete with a friend on Kim's game. Kim's game is an old test that forces you to memorize objects. Have a friend place ten or fifteen random objects out in front of you. Study the objects for up to a minute before your friend covers them up. List as many of the objects as you can remember. When you're done, switch places with your friend to see how well they do.Once you have mastered memorizing objects, try becoming more specific. List as many details about the objects as you can. How big are they? In what order are they arranged? How many are there?