Questionnaire items related to exchange activities at workplaces were inquired of employees (N=28) in a preliminary investigation, which identified 129 items. These were classified into 19 major items. In the main study, an online survey was conducted with participants (N=500) regarding the state of 19 exchange activity items, environmental factors that facilitated workplace interactions, the consciousness of exchange activities, and the state of cohesion in the workplace. The results of cross-tabulation and chi-square tests indicated that correlations between workplace interactions and cohesion among co-workers were significant for all the items. Moreover, analysis of correlation levels suggested that having time to relax together with all the workplace members promoted exchange activities and that a high level of consciousness about interactions of coworkers promoted exchange activities, as well as cohesion in the workplace.