Hinge at your hips and rest your butt against the wall.
Press both sitting bones into the wall with equal pressure.
Rotate through your chest and attempt to open your breastbone to the sky.
Keep the front of your ribcage resting down. Keep your bra-line full and moving back.
Watch your moving hand with your eyes.
Keep your extended arm in the same plane as your shoulder. Your extended arm follows your chest, but does not lead the way. Do not throw your arm back.
Dot not arch your back (in other words, do not backbend) as you rotate. Keep your ribcage relaxed down and your bra-line full.
Keep both sitting bones pressing equally into the wall
Breathe easily. Do not tense your abdomen or restrict your breath.
Perform 5 - 10 repetitions.