How did governance in Kirchner's Argentina and Chávez's Venezuela interact with popular mobilisation? How have popular sectors engaged with and participated in Left-of-centre governance? Using ethnographic data, we argue that the answers to these questions lie in three social mechanisms that we call recognition, incorporation and selective mobilisation. We analyse how activists and participants interpreted and contested these mechanisms, paying attention to how they informed the everyday life of activism and the situated actions of participants. Underscoring their socially embedded and path-dependent nature, we argue that these mechanisms shaped mobilisation differently in each country.