• Language. “Please,” “Thank You,” and “You’re Welcome,” demonstrate to others that you value their effort, thought, and/or generosity.
• Names. Always address others in business by their title (Mr., Mrs., or Ms.) and their last name, unless they request you use a given name or nickname.
• Attire and Dress. The way a person dresses can demonstrate their respect for whoever they are meeting.
• Eye Contact. Most people believe that those who do not make eye contact are lying or avoiding something, or that they lack the confidence to interact effectively with other people.
• Speaking. A clear, well-modulated speaking voice is an important social tool, and contributes to the ease of communication and a good first impression.
• Handshake. While the handshake should be firm, too much pressure shows a desire to dominate and can be a negative signal.

• Avoid discussing politics and religion as many people have strong feelings about these topics and if your opinion differs from theirs, an unpleasant argument could ensue.
• Tasteless jokes, especially those which target a specific gender, cultural group or sensitive topic, are not funny and may create legal difficulties for you and your employer.
• Never bad mouth a current or past employer, or engage in malicious gossip about co-workers. 

Before meeting business associates in other countries, it is wise to educate yourself on the customs of other cultures and the background of the individuals you will be meeting. 

Behavior which might be considered acceptable or even unimpeachable in the U.S. may be considered offensive by people with different social rules.