For women by placing their weight on the back foot will put the hips and shoulders at a pleasing angle. The subject should point her foot that is nearest to the camera toward the camera and shift her weight to the back hip. This means the front leg and foot will have no weight on it. She should then bend her knee slightly toward the other leg. This will give a pleasing “S” curve to her body.
For men, placing their weight evenly on both feet at 45 degrees to the camera will put their head and shoulders at a more balanced position without looking like they have football shoulders.
Though I am writing more technically, this will help people to understand when they are being asked to move around by
the photographer the rashinarl behind it.