This paper theorizes critical readings from an interactional / argumentative point of view, situating them on a scale going from consonant, "friendly" criticism, to dissonant, confrontational or "unfriendly" criticism. Some key critical notions (by Oscar Wilde, Stanley Fish, Paul Ricoeur, Judith Fetterley and H. Porter Abbott) are examined in the light of this conception of criticism, and situated within the framework of interactional pragmatics.