Many of the conversational design principles are based on the idea of the cooperative principle, which states people work together cooperatively in conversation. The principle was defined by Linguist Paul Grice, and it is supported by four conversational maxims, with a fifth being added from linguist, Robin Lakoff. These simple maxims make the foundation for much of voice design. Erika Hall joins the show to give a detailed look at these maxims, which are the Maxim of Quality, Quantity, Relation, Manner and Politeness, and you'll learn how to apply these ideas into your conversational interfaces and experiences.