Have each player stand by the spike line.

First player in line stands at the spike line and runs to the net as if blocking a ball.
Then the player will quickly turn around and dive to the floor as if getting to the ball that was unsuccessfully blocked.

The player will then get up and run to the middle of the net continuing the same steps.

When the first person has made it to the middle then the next person in line goes. Each person should do this 3 times at the net.