1)The Keio ACLS Popularizing and Promoting Association (KAPPA) is an official student organization that promotes advanced life support techniques.
2)KAPPA has provided 29 advanced cardiac life support courses, including 20 official ICLS (immediate cardiac life support) courses of the Japanese Association for Acute Medicine, which have trained 314 ICLS providers and 61 ICLS instructors during the past 8 years.
3)Peer–led training among students to maintain the quality of the courses has contributed to the activities of KAPPA.

Introduction: This paper reports the results of a practical communication education program for medical students that incorporates motivational interviewing and nonverbal communication. Methods: Changes in confidence in communication before and after the class were measured with the NRS scale and a corresponding t-test, and qualitative analysis of the class feedback was conducted by text mining using KH coders and content analysis. Results: The results showed that the students’ confidence in communication increased after the class. The most frequently mentioned topics in the feedback were communication, ability, class, learning, self, questions, conversation, speaking, partner, and listening. Conclusions: This is the first validation of the effectiveness of motivational interviewing and nonverbal communication in improving the communication confidence of Japanese medical students.