Singular they has become increasingly common as a personal pronoun of reference for non-binary individuals and in use with generic referents. While previous accounts of the licensing conditions of they are primarily syntactic, pragmatics may also play a role. By Maximize Presupposition (Heim 1991), speakers who use they rather than a more specific gender marked pronoun are potentially signaling that they do not know the antecedent’s gender or that it is not relevant to their current goals. This would predict that socially close referents would be less felicitous antecedents for they.  In this study, participants made judgments for nine types of antecedents. Gender marking, specificity, and social distance had reliable effects on acceptability.  In addition, cluster analyses indicated that participants naturally fell into three groups, which align with those predicted by Konnelly and Cowper (2020). Individuals who were younger, more open to non-binary gender, and had more experience with non-binary individuals accepted they in more situations.