Wa!

Group stands in a circle.
A person starts by pointing at someone and saying "Wa"
That person points arms upwards and says"Wa"
The people either side chop arms inwards to person reaching up and say "Wa"
The person pointing upwards then continues game by throwing the Wa to someone else in the circle.
The last two remaining in the game are the winners.
They can then play each other by holding their hands up opposite each other and playing the game as if their hands were people in the circle using the same principle - Chopping sidewards or pointing upwards.