Frontmatter -- Contents -- Acknowledgements -- List of figures, maps and tables -- List of abbreviations -- Part I: Theoretical, empirical and methodological foundations -- 1 Introduction -- 2 Language and culture in English as a Lingua Franca -- 3 ELF pragmatics and interactional linguistics -- 4 Methods and data -- Part II: Communicative aims and interactional strategies -- 5 Communicative aims in TeenELF -- 6 The use of repetitions in TeenELF -- 7 Repair strategies in TeenELF -- 8 The speech act of complimenting in TeenELF -- 9 Laughter and humour in TeenELF -- 10 Translanguaging in TeenELF -- Part III: Discussion -- 11 Summary and critical reflection -- 12 Implications of linguistic findings for language teaching -- 13 Outlook -- Appendices -- Appendix A Transcription key and sample transcript -- Appendix B Fieldwork material -- Appendix C Cross-corpus comparisons -- References -- Index