 Further questions arise about each of these propensities. One cluster of questions concerns the details of acquisition: what sort of perceivable cues are salient to the norm system, prompting a person to perceive a behavior, context, or role as normatively governed? And once a norm is identified, what causes a person to internalize it? Perhaps the merely statistical fact that most people behave the same way suffices in some cases, while in others a sanctioning response may be required to activate the acquisition process. A second family of issues concerns motivation: is norm-guided behavior typically driven by intrinsic or instrumental motivation? People may comply with a norm for its own sake, simply because it is felt to be the right thing to do. They may also, however, obey a norm merely in order to avoid punishment and blame. Some behaviors may be driven by both kinds of motivation. Similar and perhaps more puzzling questions arise about the psychological roots of people’s motivation to punish others who violate norms. A third family of questions can be framed in terms of innateness: to what degree are the mechanisms responsible for norm cognition innately specified or culturally acquired? Aside from the mechanisms, is any of the content—any of the norms themselves—innately specified?