Create a 5-8m square for each pair with a cone in the middle. Pairs choose a worker (A) and feeder (B). If you don't have enough balls/space, make groups of 3 with one sitting out each time.
(A) starts in the middle cone and runs diagonally to a station. At the station, step out and anchor the outer foot, then push off to change momentum 180 degrees.
For every run, (A) should be looking at (B) throughout
(A) runs backs to the middle cone and receives from (B)
(A) passes back to (B) then sets off to the next cone in sequence (clockwise or anti) and repeats
Remember (A) must always watch (B) - this is harder for runs away from (B)
After 1 minute, change roles.