Do Your Background Research
In order to best prevent cultural mishaps before they occur, do your background research on what is considered appropriate when it comes to business conduct. For example, if you are working for a company based in Japan, you would do well to first bone up on the business etiquette and standards for the conduct of business.
For example, did you realize that if you are conducting business in Japan that you should wear shoes that are easy to remove - after all, you'll be removing your shoes multiple times. If you need to wear a kimono in a business setting, NEVER wrap it right over left - this signifies mourning over a death. You should also never pour a drink for yourself; always let someone else pour it for you.
In Mexico, do not send yellow flowers. While they mean friendship in the United States, they signify death in Mexico - and red flowers signify spells cast rather than love. You should also never call someone by a first name unless they have instructed you otherwise.
A fantastic website reference for those looking to do background research on international business etiquette is Cyborlink's business etiquette site. You can select a country and get background information on the nation, cultural norms, and etiquette in dress, behavior, and conversation. You may also want to look into one of the many books on international etiquette including Global Business Etiquette: A Guide to International Communication and Customs by Jeanette S. Martin and Lilian H. Chaney.