PULLMAN, Wash., April 15 (UPI) -- Across cultures, people who act extroverted -- energy, positive emotions, assertiveness, sociability and stimulation seeking and talkativeness -- feel happier.
Timothy Church, a professor and associate dean of research in the College of Education at Washington State University, and his team used a "Big Five" personality trait survey to measure behavior and mood in college students in the United States, Venezuela, China, the Philippines and Japan.