LEAPFROG

Leapfrog is a children's game in which players

vault over each other's stooped backs. Games

 of this sort have been called by this name since at

least the late sixteenth century.[1] They also played

 this in colonial America.
The first participant rests hands on knees and bends

 over, which is called giving a back. The next player

 places hands on the first's back and leaps over by

 straddling legs wide apart on each side. On landing

 he stoops down and a third leaps over the first and

 second, and the fourth over all others successively

. When all the players are stooping, the last in the line

 begins leaping over all the others in turn. The number

 of participants is not fixed.

The French version of this game is called

saute-mouton (literally "leapsheep"), and the

 Romanian is called capra ("mounting rack" or "goat").

 In India it is called as "Aar Ghodi Ki Par Ghodi"

 (meaning "horseleap"). In Italy the game is called

"la cavallina" (i.e. "small or baby horse").
In the Korean and Japanese versions (말뚝박기 lit.

 "piledriving" and 馬跳び うまとび umatobi, lit.

 "horseleap", respectively), one player 'leaps'

over the backs of the other players who stoop close

enough to form a continuous line, attempting to

 cause the line to collapse under the weight of the riders.

Steps

1Person A: Kneel down on the ground, then bend over your knees so your head touches the ground.
 2Person B: Stand behind Person A and place your hands on their back.
3Person B: Using your hands for leverage, jump over Person A, landing in front of them.
4Person A: Stand up, and repeat steps 2 and 3.
5Repeat until you run out of room, or get tired.