She starts by talking about using one big light modifier and about creating positive and negative space in the photo while slimming them out. It involves turning the subject to the side and creating an S shape with the body then bringing the knees together. After that, you’re moving parts of the person closer or further away from the lens. As we always say, the longer the lens, the better it is for slimming a person out.
This demonstration worked specifically for the the model present, but it probably won’t work with everyone because of the different shapes that each person has.
creativeLive’s video is after the jump.