Politeness is defined as language use or communication in order to avoid humiliation of both speaker and hearer. Deference refers to the use of language to show respect after considering aspects that urge the speaker to do so. The goal of deference is to satisfy the hearer (facesatisfying act). https://www.roneverhart.com/Castello-di-Amorosa-Il-Barone-Napa-Valley-Cabernet-Sauvignon-2007/