In my Social Psychology course I discuss the concept of social norms. Norms are rules for behavior, some of which are formal and may be integrated into our system of laws (stop at red lights, don’t steal, file your taxes); others are more subtle and are learned by watching the behavior of others around us as we grow and develop (shaking hands when we meet someone, maintaining certain physical distances from other people, holding a door for someone behind us). Adhering to these norms tends to keep us out of trouble and wins the approval of others; deviating from these norms can lead to being punished or socially ridiculed. And while many social norms are universally shared, others tend to be culturally specific. One of the aspects of travel that I find particularly fascinating is being exposed to different sets of social norms depending upon the culture I’m visiting.