Social thinkers often use the concept of intersubjectivity to mark out a problem of theoretical sociology: If people are unable to look into each others' minds, why do they often understand each other nonetheless? This issue has been debated extensively by philosophers and sociologists in three largely disconnected discourses. The article investigates the three discourses for isolable ideas that can be fitted into a sociological answer to the problem of intersubjectivity. An interactional solution, fully coherent with key insights from the (...) discourses, is offered at the end of the article. Its main point is to identify coordinative interactional mechanisms that compel participants to "make themselves understandable" vis-à-vis their interaction partners. (shrink)