People Standing Weirdly In Public

When doctors or therapists look at someone's posture they generally first look at the alignment of the weight bearing joints in standing. Ideally from a back view the spine should have no lateral curvature and the legs should be symmetrical without undue angulation at the knees or ankles. From a side view the spine should form a smooth S-shaped curve, bisected by an imaginary plumb line dropped from the apex of the head through the center of gravity of the body.