Adopt a pluralistic set of values. What makes a person an American is the adoption of a creed. The American Creed consists of valuing democracy, freedom, liberty, equality, justice, the rights of individuals, and the responsibilities of citizenship. They include stereotyping and prejudice. People often see outgroups as being homogeneous while recognizing the heterogeneity among their own group members.
People often act friendly on the surface while being prejudiced on the inside.
People often blame the victim, believing that people provoke the discrimination they are subjected to. Unless individuals are aware of the dynamics of such cognitive barriers, they are unable to interact effectively with diverse peers. Just the presence of another group can create feelings of competition and rivalry. Once started, intergroup conflict is very difficult to end. The combination of cooperative action and personal interactions tend to result in friendships.