This article details a teaching method for intercultural business communication for ESL students in New Zealand and Australia. These students are often international students, many from Asia. In particular, in the past few years, a significant proportion of them have come from China. The diverse cultural backgrounds in the classroom pose challenges for teaching intercultural business communication. To meet these challenges, Canagarajah (2002) appropriately pointed out that it is essential for instructors to encourage students' participation and contribution to ESL education; this advice can also apply to teaching intercultural business communication. To achieve this aim, the author incorporates everyday authentic dialogues into teaching activities as an important method of involving students in classroom activities and encouraging their contributions. The idea of using dialogues was also inspired by Storti's (1994) collection of dialogues. However, it is more appropriate to use authentic dialogues that students can identify with more easily. Therefore, the author has applied this method in teaching the course in both Australian and New Zealand institutions. Furthermore, this article details a tutorial exercise based on authentic dialogues collected from everyday life and also illustrates the method with a dialogue collected by the author.