Extended foreign travel takes people outside of their comfort zone. Travelers have to adapt to new people and new cultural practices. Even people going from Germany to another EU country had to adapt to differences in language, food, and outlook. The more that these travelers engaged with new people from different countries, the more that promoted goals related to Openness. It also helped travelers to gain perspective on life, which made them less emotionally reactive to day-to-day changes (which increased Emotional Stability). The experience of meeting new people also helps with Agreeableness, though this was not directly related to the size of people’s new social networks.