抄録
This paper focuses on the teaching of techniques and behaviors that a listener in a conversation exhibits to deepen mutual understanding. The participants were non-native teachers of Japanese in lessons designed to improve oral proficiency and were of B2 level under the JF standard. The participants realized that to deepen mutual understanding, making comment, asking questions and "aizuchi" were all extremely important. They were also keen to put this knowledge to work in their own classrooms.