Aleksandra Kostic is Professor of Social Psychology at Faculty of Philosophy, Department of Psychology, University of Niš, Serbia. She teaches courses on Introduction to Social Psychology, Social Perception, Nonverbal Behavior and Psychology of Interpersonal Behavior. Her research interests include nonverbal communication, emotional experience, time perspective, ethnic identity, and similarities and differences between cultures in perception of category, intensity and antecedents of emotion.Derek Chadee is Professor of Social Psychology and Head of the Department of Behavioural Sciences and Director of the ANSA McAL Psychological Research Centre at the University of the West Indies. He is a Senior Fulbright. He has written prolifically in the area social psychology and has published five books including Theories in Social Psychology.