Social Studies—Travelers often overemphasize spoken language and underestimate body language: they should know more about a country’s customs, etiquette, and protocol. Check gifts for appropriate color and value. Respect locals when taking pictures—politely ask for their permission to do so and be prepared to offer a small tip. Finally, respect local laws, as penalties for relatively minor infractions back home mean major trouble abroad. It is my experience that most travelers who get into trouble abroad are doing things or saying things they ought not be doing or saying. And remember, “if you get into trouble” (actual language in the U.S. passport), contact your local embassy.