This document provides advice on how to be open with diagrams by discussing four key steps: 1) deciding who to work with using business decision and satisfaction models, 2) opening up opportunities by considering the long tail and bravery scale concepts, 3) striking an open deal using an "IF" triangle negotiation model and planning bargaining arenas, and 4) fostering open relationships by understanding motivational dips and relationship phases. It concludes with a nine dot puzzle challenge.