One of the main problems travelers face is communicating with the locals. Even if you never leave home without your trusty phrase book, communication is as much about nonverbal cues as it is about talking. In fact, people rely more heavily on hand gestures and body language when in situations where they are unable to verbally interact with someone.4. The moutza. In Greece, Mexico, the Middle East, and Africa, the action of raising your open hand, palm out, with spread fingers in front of someone is a serious sign of displeasure. Possibly one of the oldest hand gestures still in use, it dates all the way back to ancient Byzantium, when criminals were chained to donkeys and paraded through the streets, where locals would rub their own feces onto the prisoner.