Article: Push against your knee as you turn.

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Remove anything from your pants pockets and sit cross-legged on the ground with your hands resting lightly on your knees. Lengthen your spine by imagining a string pulling on the top of your head (towards the back). Inhale slowly and deeply through your nose. Exhale slowly and turn your body as far as you can to the side without losing the lengthened spine. Repeat, turning to the other side as you exhale. Turn to each side 10 times, then switch legs (if you sit with your right leg crossed over your left, switch so that your left is over your right and vice versa) and repeat each side 10 more times.