In many of the most highly regarded international schools, international mindedness (IM) represents an overarching value orientation and a "mindset" to be developed in students. Over the last 2 decades, there has been increasing attention to both understanding and supporting IM in the explicit and formal curriculum in international schools; however, the theorization of the more "implicit" or "hidden" curriculum of international schools has been much less engaged. This article presents a broad conceptualization of IM from a synthesis of the most recent IM literature and, more specifically, digs deeper into the implicit forms of learning and subjectivity via a "post-informed" analysis of a critical anecdote of international school teaching. The article seeks to inform leaders of how they might more robustly understand IM and work to "walk the talk" of IM through a more open embrace of human difference and cultural conflict under complex, power-laden, and sometimes fraught social relations.