Although American informality is well known, many interpret it as a lack of respect when they first encounter it, especially in the business world. The almost immediate use of first names, for example, jars on nerves long accustomed to deference or respect from men of lower rank.
Don’t be surprised if Americans do not shake hands. They often just nod or smile instead. A casual “Hi” or “How are you doing?” or “Hello” often takes the place of a formal handshake, but it means the same thing. Nor will you find Americans circulating about a group in the office or at a party giving each one a personal farewell. Instead — again the different sense of timing and pace — they will just wave a cheery “good-by” or say something informal to the whole group such as
“Well, see you tomorrow” or “So long everybody.” Then they will disappear. No handshakes.
