Abstract
A growing literature demonstrates that kindness improves individual well-being, meaning, and social connection. This paper adds to such literature by asking if intentional acts of kindness strengthen relationships, psychological safety, and supportive norms within collaborative teams. It draws on a field experiment embedded within a three-month problem-driven learning program involving eighteen participants working in teams on real public problems. These participants undertook intentional acts of kindness toward assigned teammates and subsequently reflected on the acts they gave and received. Findings suggest that relatively small acts of kindness generate substantial relational effects, with participants reporting increased appreciation, support, encouragement, and belonging. The strongest effects occurred when acts demonstrated attention, memory, and understanding. The evidence also suggests that repeated acts contributed to psychological safety and the emergence of norms of mutual support. The paper thus argues that kindness functions not simply as an individual virtue but as a relational capability that helps teams collaborate, learn, and solve problems together. Small acts of kindness appear capable of producing effects that extend beyond individual well-being to influence relationships, team norms, and collaborative performance.