The present research uses a Social Relations Model approach to focus on individual differences in perceptual confidence - a person's confidence in her or his impressions of others. Across two samples of group interactions, we found that the majority of variance in perceptual confidence was explained by individual differences in how people tended to perceive others (i.e., perceiver effects). A smaller percentage of variance was explained by differences in how people tended to be perceived by others (i.e., target effects). Both these individual differences were stable over time, were related to relevant personality measures, and group outcomes. Together, these results demonstrate that although perceptual confidence may not be substantially related to accuracy, it exists as a stable individual difference dimension that has important consequences for social interactions. (C) 2015 Elsevier Inc. All rights reserved.