This paper reports on research carried out on data extracted from "MexCo" (Mexico-Coventry), an ongoing Online Intercultural Exchange (OIE) in its fifth implementation cycle at the time of writing (May 2016). Based on a set of collaborative intercultural tasks that participants engage with through a tailor-made "Moodle" area, "MexCo" aims to embed internationalisation into the curriculum of the two institutions involved in order to promote global citizenship competences among both students and staff. This study reports on the corpus-based linguistic analysis of the written asynchronous exchanges in two of the discussion forums in "MexCo" in academic year 2014-2015. The analysis was carried out by an "expert student" in collaboration with staff with a focus on the use of pronouns, and three key differences were observed regarding the use of the first person plural pronoun "we". [For the complete volume, see ED571330.]