This paper reports the findings of a case study carried out in an English for specific purposes class with student tour guides at an Argentinean university. The main objective of this research project was to analyse how the teaching practices in the English language classes favoured intercultural exchanges. Data were gathered through document analysis, surveys, and interviews with students and with core-subject professors. Results were analysed qualitatively. We conclude that we must foster a friendly and safe learning environment to give voice to learners from native communities so that they can express their own identities and thus give way to enriching intercultural dialogue.