The aim of this chapter is to redefine politeness – a linguistic, semiotic and cultural concept – in a multimodal and polyartefactual communication context. In this complex interactional situation, different instances (determined by the status in the group or by the communication tools) and presence indicators (from physical to artefactual and interactional presence) have been analysed. In order to highlight participants’ behaviour and acts of politeness, we used a multidisciplinary theoretical framework. This chapter addresses the following question: to what extent does the polyartefactual communication context affect the rituals of politeness? It aims to document the group’s evolution in terms of interpersonal relationships’ regulations from the first to the last session. It also proposes, in the manner of H. Paul Grice’s (1979) and Dan Sperber’s (1989) maxims, a redefinition of new “rules” of politeness linked to the artefacted context.