Responsibilisation is commonly associated with a neoliberal transfer of responsibilities from state to social actors. However, it also covers the construction of responsibility where it does not exist yet – where citizens need socialisation to manufacture responsibility so they become economically and socially active, healthy, and productive subjects. This article aims to bring more conceptual clarity in these practices. Based on an analysis of literature on contemporary welfare state policies, three different techniques are discerned: reciprocal governance in welfare state services; training and treatment of vulnerable citizens through support and structure; and choice engineering by working upon the unconscious and psychological triggers underlying decision making. These techniques of behavioural power seek responsibilisation by working upon people's understanding of responsibility as a moral imperative and upon the rational or psychological mechanisms that constitute the choices they make and the attitudes they have.