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Em sociedades agrárias africanas, os rituais de saudação e despedida são uma parte essencial dos processos de comunicação que constituem essas sociedades como entidades colectivas. Por meio de formas elaboradas de saudação e despedida, as pessoas iniciam e encerram os processos de comunicação e interacção dentro de uma estrutura de identidades e culturas colectivas. Complexos rituais de saudação permitem lidar com todas as formas de encontros, tanto com pessoas vivas quanto com os espíritos dos mortos. Os rituais de saudação são adquiridos por meio de longos períodos de aprendizagem. Seu domínio é o sinal de ser um adulto e membro competente da sociedade. Actores externos de diferentes culturas muitas vezes parecem não estar cientes das subtilezas desses rituais de saudação. Eles os ignoram com um custo. Este ensaio fornece algumas percepções do funcionamento interno de sociedades africanas no que diz respeito ao enquadramento dos seus processos de comunicação interna e externa. Estes que são tão importantes para as suas mundo-vivências como para as suas interacções com actores externos de diferentes áreas. A análise das sociedades de uma forma compreensiva como entidades auto-organizadas dentro de uma matriz étnica demonstra claramente os limites de reduzir rituais de saudação a meros actos de fala entre indivíduos e atesta que alguns dos pressupostos básicos das modernas teorias de comunicação não são válidas para sociedades agrárias africanas.