Most research and theories of interpersonal communication reflect mainstream U.S. culture. In an attempt to better understand the communication practices of Spanish-speaking cultures, an exploratory study of interpersonal communication was conducted involving Puerto Rican managers. The Index of Interpersonal Communication Competence (IICC) was translated into Spanish and administered in two large international pharmaceutical companies in Puerto Rico. The results of the study are discussed in terms of implications for communication theory and applied communication research.