Sit upright in a chair.
Place the putty flat on the table.
Place your hand over the putty, pushing your fingertips into it.
Keep your wrist and forearm flat on the table.
You may want to stabilise the putty with your other hand.
Pull the putty towards you, bending your fingers into a fist.
Your wrist and forearm should not move from the table.
Squeeze the putty in as far as you can and hold this position.
