Drawing on an Entrepreneurship as Practice (EaP) approach, this article examines how next generation members in family owned businesses (FOBs) engage in external venturing. Our study builds on longitudinal qualitative research in two Mexican FOBs where the next generation launched ten ventures. It reveals five different practices of external venturing used by next generation family members: ‘obtaining family approval’, ‘bypassing family’, ‘family venture mimicking’, ‘jockeying in family’, and ‘jockeying around family’. The five practices are combined into three routes for external venturing: ‘imitating the family business’, ‘splitting the family business’, and ‘surpassing the family business’. Building on notions from Michel de Certeau’s practice theory, this study contributes to theorizing the five practices as ways of operating and the routes as modes of sensing to better understand how next generation family members deal with settings featured by dominant orders within the family and the FOB in their attempts to originate and launch their new ventures.