What Lovers Tell Us About Persuasion

This is interesting... "there was a third set of communicators who employed a breathtakingly simple and successful procedure that we term the relationship-raising approach. Before making a request for change from their partner, they merely made mention of their existing relationship. They might say, "You know, we've been together for a while now" or "We're a couple; we share the same goals." Then, they'd deliver their appeal: "So, I'd appreciate it if you could find a way to change your stand on this one." Or, in the most streamlined version of the relationship-raising approach, these individuals simply incorporated the pronouns "we," "our," and "us" into their request."

Source:HBS-WorkingKnowledge