This article proposes to reflect on the issue of proximity in the context of participatory research carried out in connection with social practices, actions or interventions. We will link this proximity to three other attributes specific to participatory research: the considering of emotions; the necessary recognition of the actors concerned; and reciprocity, seen as a beacon for interactions between partners who mutually share experience and expertise. Two field research carried out between 2012 and 2018 will serve to support our reflection.