How to Think about Meaning develops an even more radical mentalist semantics, which it does by shifting the object of semantic inquiry. Whereas for classical semantics the object of analysis is an abstract sentence or utterance such as "Grass is green", for attitudinal semantics the object of inquiry is a propositional attitude such as "Speaker so-and-so thinks grass is green". Explicit relativization to some speaker S allows for semantic theory then to make contact with psychology, sociology, historical linguistics, and other empirical disciplines.