Each player has a ball and should stand inside a 2m-diameter circle drawn with chalk.
The player throws the ball high above his/her head - it should be overhand passed up so it bounces inside the circle.
The player should allow the ball to bounce, get into position to use the overhand pass again to push the ball back into the air.
Alternate passing and bouncing.
Tell players the higher they pass up the more time and space they have to prepare for next pass.
Continuous passing in a circle.
World Rugby has reportedly conceded Aaron Smith's disallowed try in the World Cup final should have stood.
"It is not only useful for staff who are experienced but a valuable tool for those subject staff who have to take teams."
The variety of sessions across sports - sometimes we steal session ideas from one sport and use them with another.