Activity Theory has often been used in workplace settings to gain new theoretical understandings about work and the humans who engage in work, but rarely has there been sufficient detail in the literature to allow HPT practitioners to do their own activity analysis. The detail presented in this case is sufficient for HPT practitioners to begin to use Activity Theory as an analytical framework. The case described here tells in detail of an activity analysis done with the global sales and marketing training department of a U.S.-based Fortune 500 multinational corporation. With a facilitator coaching them in its use, the team was able to use Activity Theory both as a debriefing tool and proactively to plan a training intervention in Japan. As a result of the team's work, potential cultural conflicts were avoided, improvements for later training interventions were identified, and knowledge and experience were mutually shared. (Contains 1 table, 6 figures and 2 notes.)