Today's world is being shaped by migration and globalization at ever increasing rates. As these forces spread, more and more people with different cultural backgrounds and different personalities come into contact and interact with each other. Not only does this phenomenon pertain to how we work and do business together, but it also applies to the people we spend our leisure time with and trust with our private thoughts and feelings: our friends. Insights from cultural and personality psychology into friendship processes are therefore key to understanding and facilitating friendship processes...