...facial appearance can shape psychological traits...People largely agree when judging political orientation from faces (Todorov et al., 2015). Regardless of whether such judgments are accurate, the self-fulfilling prophecy effect (Merton, 1936) postulates that people perceived as having a particular attribute are treated accordingly; internalize such attributions; and, over time, may engage in behaviors consistent with others’ perceptions (Slepian & Ames, 2016). For example, people with larger jaws, often perceived as more socially dominant (a trait associated with political conservatism), might over time become more so.