One thing that often makes me laugh are the post-facial reactions of models. Usually these happen after the facial and while the models are hanging around waiting for photos to be taken and the scene to end. The main action has ended - what is the cum-covered model supposed to do now? A real pro will often be able to wing it until the camera is switched off, but for many models you get a few second of side-glances, shifting about and general awkwardness...