Etiquette expert Hilka Klinkenberg says dressing appropriately when traveling abroad is important. In Asian cultures, it is taboo to touch anybody on the head, even a child. The Japanese stand a good deal farther apart than Americans, which allows room for bowing. In Europe, handshakes are more curt than in the United States. In China and Japan, the first name follows the family name; in Germany, address a person by all their titles, even if it’s a mouthful.”]
Source: https://www.csoonline.com/article/2117780/global-business-etiquette—don-t-get-too-close.html