This article describes the results of a six-month ethnographic case study of a French immigrant of Senegalese descent and how he recreates the culture of an American company's speech community. Data were collected through interviews, field notes, and shadowing the participant at his place of employment. The transcribed interviews and field notes were then categorized and analyzed. Conclusions indicate that the subject discursively controlled contexts that contributed to social change on site.Este artículo describe los resultados de un estudio etnográfico que durante seis meses documenta las experiencias de un inmigrante francés de ascendencia senegalesa en su intento de recrear la cultura del discurso comunitario de una compañ ía estadounidense. Los datos, recogidos de entrevistas, notas de campo y la observació n del participante en su lugar de empleo, más tarde se dividieron en categorías y se analizaron. Los resultados indican que el participante, a través de un control discursivo de diferentes contextos, contribuyó al cambio social en su entorno laboral.The germ of this research was a response to a plea for help. A frozen foods processing and packaging company contacted the university department requesting assistance with a problem that had been occurring in their company: a US workplace that had become multilingual and multicultural because of the recent influx of West African and Hispanic employees and its concomitant miscommunication problems which decreased productivity and endangered immigrant workers who weren't able to read safety instructions labeled on large machinery. Furthermore, cultural misunderstandings were blatant, resulting in employees' mistrust and apprehension in communicating with each other.The company contracted with the university to design and implement language training in English, French, and Spanish. The primary goal of the English as a Second Language (ESL) courses was to focus on language specific to safety issues and understanding the safety signs and directions of how to operate machinery located in the plant. The French and Spanish courses were designed within the same context with special emphasis placed on increasing the effectiveness of the type of *