The aim of this chapter is to discuss and reflect upon four methods of action designed to build relationships for collaboration that are aligned with the principles of Complexity science applied to a holistic ecosystem of health and healthcare. It first discusses the four methods of action to build relationships: distributive engagement, networking, participatory action research, and reflexive practice. It then analyzes the implications of these methods for the three agencies of health and healthcare: Principles and Purposes (P1); People in Place (P2); and Processes and Practices (P3). The outcome is the assemblage of an ecology of action to build relationships, termed the Distributive Action Relational Ecology (DARE) of health and healthcare. Finally, it reflects upon the link between modes of cognition (identified in the Chap. 8 ) and actions to build relationships. The Chapter concludes with the assemblage of an ecology of cognition and action, termed the DARE to CARE for health and healthcare.