Abstract
There are a huge number of one-on-one conversations, such as that of between bosses and subordinates in the company, but also that of between doctors and patients, calls at call centers, and so on. Unfortunately, the number of people who empathize with the other person's feelings in those one-on-ones is a minority. If you can increase the types and vocabularies of back-channel feedback and be able to back-channel feedback with sympathy for emotions, it will improve your Net Promoter Score (NPS) at call centers or medical institutions, and 360-degree evaluation score of company managers. In order to be able to empathize with emotions well, it is important not only to absorb knowledge in classroom, but also to actually try and practice and get individual feedback.
