 Expressivists about morality do not take there to be any objective content to morality that could underwrite what we above called “the substantive definition”. Rather, they explicitly recognize the existence of significant variation in what rules and ideals different people put forward as morality in the normative sense. And they doubt that this variation is compatible with moral realism. Consequently, they need to offer some unifying features of these different sets of rules and ideals, despite variation in their content. As a result of this pressure, some expressivists end up offering explicit accounts of a distinctively moral attitude one might hold towards an act token or type. These accounts can of course be taken to underwrite various forms of morality in the descriptive sense. But they can also be taken to provide the basis of one form of moral realism.