This study investigates, on a pragmatical perspective, the making of meanings in the written productions of a Portuguese-Spanish bilingual speaker. The subject's mother language is Portuguese. However, he has lived in a context where Spanish is the official language. The data emerge from two written texts produced in different situations. The results suggest that the written productions reflect the social practice in which the subject takes part. They also represent the place where his pragmatical knowledge interacts with the target language. This study contributes to a reflection on the role of the teacher as an interlocutor determined by the institution who seems to be in conflict with the bilingual subject/writer.