Abstract
The number of workplaces where both Japanese and Vietnamese work together is increasing. It is pointed out that good communication within the company leads to more efficient operations. The data in this study are natural conversations in Japanese featuring non-work-related chat situations between Japanese and Vietnamese employees at three IT companies. In this presentation, the results of observing the subjects of chat and the interaction in conversation show that, although chat is not directly related to performing tasks at work, it is a venue to understand each other better and build smooth relationships. It is also emphasized that interaction through chat is important, particularly in the workplace in situations where people make contact with each other.