HOW: Assume a half kneeling position. Elevate the foot of the rear leg onto a couch, chair, or bench. Rock back the hips towards the heel until a stretch is felt. Pause here and push the shin into the bench. Relax and then deepen the stretch.
FEEL: You will feel a stretch on the front of the thigh.
COMPENSATION: Avoid flaring the ribs upwards. Avoid letting the torso fall forward.