It depends on the vendor. With DG line on HSN, Diane likes to emphases the stretch Of her fabric, so, the models are suppose to bend and crouch and pull on the material it show the stretch. I find some models have particular ways that they smile, and show their face for the cosmetic shows, and how they stand for the fashion shows. I think the models are told what looks best for them when they first started out modeling and they kind of do it For the rest of their career over and over again. It gets very repetitive and rather irritating to see the same model do the same thing again and again.
There is this new blond model on QVC who is pretty, but she has these huge lips that she pouts like a fish to emphasis them..... It makes her look so phony and cutesy....I almost can not stand to watch her. There is another African American model on QVC that is tall thin and pretty, but she fidgets and wiggles so much when standing it looks like she has ants in her panties. Someone must have told her to keep moving through out the show and never be still.