The answer is "less eye contact".
Eye contact is considered as the strongest type of non-verbal communication. From birth to death and all events in the middle of, the eyes have it. While ladies and men vary in their eye conduct and what that conduct implies, eye to eye connection is the most grounded type of nonverbal communication.
Forces that energize, direct and sustain a person's efforts are called motivation. It is also a person's drive to do a certain behavior repeatedly to achieve his wants and needs. Sometimes, a person would not stop doing something not unless they would be able to get the outcome or goal.
Answer: Vivian and Janet have encountered the need for explanation, a challenge to intercultural relationships.
Explanation:
Vivian, as an African American, has to explain how she became friends with Janet, an European American, because people assume that cultural differences between African Americans and European Americans are too big to be overcome.