In order for the speaker to collect objective knowledge about other cultures, racial or ethnic groups it is important to avoid prejudice. Prejudice involves coming to a judgment on a subject before learning where the preponderance of evidence actually lies. Alternatively, prejudice can refer to the formation of a judgment without direct or actual experience.
When looking at another culture or ethnic group in order to compensate for ethnocentrism as a speaker, try to look at the other group through the eyes of the members of that particular ethnic or cultural group. As our society becomes more diverse, the speaker will find it desirable to put aside ethnocentrism and prejudice to learn more about the cultures, races and ethnic groups that will be an increasing part of the local and global audience.