The theme of this book is the construction of denying acts in television interviews.In our work, we identify, describe and analyze the realization of speech strategies concerning denying acts, we interpret the reasons why the Brazilian Portuguese native speakers choose such strategies to build direct or indirect, implicit or explicit denying acts and we present a teaching proposal of the appliance of the analysis undertaken in the teaching/learning process of Portuguese as L2. In order to develop our research, we have used theoretical background from Conversational Analysis, Interactional Sociolinguistics and Cultural Anthropology.