Ninja (Best Game to play with a group of friends ever)

Ok so you get a group of people(at least 3). Then you stand in a circle and on the count of 3 yell NINJA!! then strike a ninja pose. Next, go around in order and try to slap someones hand if you slap their hand they are out. You then continue to do this until one person remains who is then the ultimate ninja. After you learn to play you can add more people and it gets really intense, oh you also have to freeze in the pose after you make your attack...good luck.