Together with our psychological research partner Mirella Walker, we develop new methods to study and manipulate faces with respect to ascribed personality traits. We use the 3DMM technology to measure people's social judgments when they only see a static face image. Without any other information but a neutral portrait image, subjects take consistent judgments about personality traits of the depicted people. The Morphable Model serves to quantitatively associate the ascribed traits with changes in the face. We can thus find and measure typical properties of a face which correspond with the perception of a specific trait. Using this information, we actively manipulate faces such that subjects perceive the face differently. Our photorealistic manipulations are predictable and consistent with human judgments.