How facemasks shape trust in social interactions

Junning Peng, Andrea Isoni, Ashley Luckman, Hossam Zeitoun, Ivo Vlaev, Dawn Eubanks and Daniel Read

PLOS ONE, 2025, vol. 20, issue 9, 1-20

Abstract: Face coverings can potentially impact how trustworthy someone appears through two channels: by hiding important facial cues associated with trust; or by signalling the wearer’s intentions or personal characteristics. The facemasks widely adopted during the COVID-19 pandemic both obscured the face and were associated with pro-social attitudes or intentions. The goal of this paper is to investigate how facemasks impact judgments about the trustworthiness of the wearer, and whether this would affect interactions with others. We report three experiments. Experiments 1 and 2 examined decisions in a two-player trust game when participants interacted with a single masked or unmasked counterpart. Experiment 3 explored whether participants were more likely to trust a masked or an unmasked person in a straight choice between them. In all experiments, masked faces were judged more trustworthy than unmasked ones. While in Experiments 1 and 2 this was not reflected in trust behaviour, in Experiment 3 over 70% of participants chose to trust the masked person, a decision predicted by the difference in perceived trustworthiness between the masked and unmasked counterparts. This suggests that in settings where facemasks or similar trust related cues are more salient, such as in joint evaluation, they can lead to enhanced trust.

Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0331918

DOI: 10.1371/journal.pone.0331918

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