This paper explores difficulties students may experience in giving opinions in class, drawing on data gleaned from the administration of questionnaires and interviews to Japanese and British students. The results show that the students from both groups regard highly of giving and exchanging opinions in class; however, there is a marked difference in their confidence in doing so, more Japanese students stating that they have difficulties even in their mother tongue situations than the British. The paper examines the background to these difficulties, drawing from detailed studies of the students' own accounts, comparing and contrasting them. (Contains 13 notes and 2 tables.)