This is an exercise which stems off from the balance activities we did in class.
To warm-up the audience:
Face the person next to you and join each of your right hands together. On the count if three,exert as much pressure as you can onto your partner to maintain balance between the both of you.
There is a line (imaginary or real) on the ground between you two.
Now, release on the count of 10 and try to throw the partner off balance.
Now turn to the person on your other side and repeat.