 Note that a crucial feature of social identity is that one’s identification with the group is in some sense a conscious choice: one may accidentally belong to a group, but we can meaningfully talk of social identification only when being a group-member becomes (at least in part) constitutive of who one is. According to Tajfel’s theory, when we categorize ourselves as belonging to a particular group, the perception and definition of the self—as well as our motives—change. That is, we start perceiving ourselves and our fellow group-members along impersonal, “typical” dimensions that characterize the group to which we belong. Such dimensions include specific roles and the beliefs (or actions) that accompany them.