Have one arm up high and the other arm low, and call out "Ka!"

Now move the upper arm down and the lower arm up
until the two arms are spread apart.
While moving your arms, call out "Me!"

Straighten your arms and bring them infront of you.
Place the bottom palm of your hands together, and call out "Ha!"

Now bring the arms back to the side of your waist (either left and right is fine)
Leaving the hands opend up and the palms stay touched.
Call out "Me!"

Power is charged up with within the palm of your hands
When it's fully charged, call out "Ha!" and fire it at the opponent.