Individuals behave differently in the presence of others. Some scholars argue the mere presence of others has the capacity to improve task performance, while other researchers demonstrate individuals become “social loafers,” exerting less effort in group tasks unless they perceive potential for evaluation. I investigate these claims in the context of evaluating poll‐worker performance using two randomized field experiments conducted in New York City during a special election that took place in February 2009 and during the presidential primary conducted in April 2016. The results suggest that manipulating the presence of observers, or even poll workers’ perceptions of the potential for evaluation, likely enhances their performance overall, resulting, especially, in greater efficiency and potentially strengthening voters’ confidence that their ballots were accurately counted and diminishing perceptions of electoral fraud.