Conflict often arises when incompatible ideas, values or interests lead to actions that harm others. Increasing people's willingness to refrain from harming others can play a critical role in preventing conflict and fostering performance. We examine perspective taking as a relational micro-process related to such restraint. We argue that attending to how others appraise events supports restraint in two ways. It motivates people to act with concern and enables them to understand what others view as harmful versus beneficial. Using a matched sample of 147 knowledge workers and 147 of their leaders, we evaluate the impact of appraisal-related perspective taking on leaders' perceptions of knowledge workers' restraint and performance. Author biography: Michele Williams (PhD, University of Michigan) is an Assistant Professor of Organizational Behavior at Cornell University. Her research focuses on cooperative relationships, especially on projects that span multiple organizations. She concentrates on gender and the influence of relational processes such as perspective taking, interpersonal sensitivity and emotion regulation on how sustainable, cooperative relationships evolve. Michele is on the editorial board of Organization Science and an Associate Editor for the Journal of Trust Research. She is a co-author of the 4-CAP Leadership Assessment -a 360° assessment used by organizations to enhance the leadership potential of managers. She teaches negotiations to undergraduates, MBAs, executives and community groups.Authors Note: Proportions of this paper were presented at the 2014 Jepson Colloquium on Leadership. The author thanks Tony Kong, Don Forsyth, the colloquium organizers as well as the other colloquium participants for feedback on an earlier draft of this chapter. The author thanks Ling Xia for her assistance with the data.