One girl is blindfolded. The others change something in their outfit, one thing each, for example taking off a shoe, putting on a different pullover/skirt/top, a new hair band. Then they walk to the blindfolded girl one by one. First the blindfolded girl has to identify the person, then she has 1 minute to find out what is different. If the blindfolded girl guesses everything correctly she swaps places with someone of her choice. Is she makes any mistakes she has to play until she has got all her guesses correct.
Source: From the original site.(Submitted by: Sonja)