World's Worst Cultural Mistakes
What’s Offensive: Personal space varies as you travel the globe. In Mediterranean countries, if you refrain from touching someone’s arm when talking to them or if you don’t greet them with kisses or a warm embrace, you’ll be considered cold. But backslap someone who isn’t a family member or a good friend in Korea, and you’ll make them uncomfortable. In Thailand, the head is considered sacred—never even pat a child on the head.
What You Should Do Instead: Observe what locals are doing and follow suit. In Eastern countries remember that touching and public displays of affection are unacceptable. In places like Qatar and Saudi Arabia, men and women are forbidden from interacting, let alone touching.
From the article World’s Worst Cultural Mistakes