Set up a foot or so away from the wall in an athletic, golf posture stance. Rotate torso and sit into the hip closest to the wall placing palms against the wall. Try to get the trail arm straight as you actively press into the wall. The biggest compensation here will be to move the knees and hips excessively toward the wall. Do 2 sets of 5 reps per side allowing for a good exhale breath as you press into the wall each time.