Frontmatter -- Contents -- Acknowledgements -- 1. Interactional Competence in a Japanese Study Abroad -- 2. Linguistic and Interactional Resources in Japanese Conversation: Speech Styles and Incomplete Sentence Endings -- 3. Context of the Study: Study Abroad as a Site for Language Learning -- 4. Methods -- 5. Speech Styles -- 6. Style-Shifting Across Discourse Boundaries -- 7. Incomplete Sentences in Joint Turn Construction -- 8. Case Histories of Interactional Development and Study Abroad Experience -- 9. Conclusion -- Appendix A: Transcription Conventions -- Appendix B: Conversation Task -- Appendix C: Motivation Survey -- Appendix D: Japanese Contact Survey -- Appendix E: Proportion of the Utterance-Ending Forms by Individuals: Polite Forms, Plain Forms and Incomplete Endings -- References -- Index