The aim of this essay is to elaborate a definition and a tentative theoretical outline of a social subjectivity, reflecting on the debate between the relational theory of society (Donati) and critical realism (Archer). Social subjectivities are defined as sui generis kind of social relationships characterized as a "We" with their own reflexivity. Social subjectivities are not cluster of people able to coordinate their actions and experiences or simply able to co-operate. Social subjectivities, instead, are "constituted" by the relationships that bond, in particular way, people transforming them in "members" that recognize themselves as committed together. The Author tries to explain the genesis of a We, out of the individualistic or holistic sociological traditions. Dialoguing with the works of Searle, Archer, Vandenberghe, Donati, Gilbert, Toumela and Baker, Prandini introduces the concepts of "Relation of constitution", "Wemode" of membership, communitas personarum, and of "We concern", trying to explain the emergent powers and properties which characterize the "We" and that influence back the constituting people. Finally he tries to explain how a We could reflect on itself and on its position in the social environment. Social subjectivities will be at the core of the future societal morphogenesis because only them could subjectivize the society, personalizing the individuals and creating relational goods with positive externalities for society. This are their social missions.
Keywords: Social Subjectivities, We-Reflexivity, Relational Sociology, Relation of Constitution, Subjectivization of society