And in mainland China, many businesses are closed for two weeks. And, especially the three days that conclude the month long fast of Ramadan. In Israel, on Saturday. Americans tend to use first names except for formal setting or clear hierarchal or traditional settings. Business cards are usually only exchanged in a business setting when business is specifically being transacted.
Titles are very important and always used.
In China, a nod or slight bow is a preferred greeting. Titles are widely used and expected. In India, men will offer to shake hands but only the most westernized will shake hands with the opposite sex. Women should not initiate handshakes with men. The traditional Indian greeting is the namaste.