What is the diplomatic etiquette?

How do you introduce a married couple at a wedding if the wife is a doctor? Another word for ignoring someone? Difference between thanks and thank you? What were some expectations of the samurai adhering to the traditional code of conduct? What do you use to address a woman if you do not know if it is Miss or Mrs? When do you use exclamation mark and point? How do you say thanks for the share in French? Should you kiss a woman goodnight on the first date? What does it mean if someone says it's been a pleasure knowing you? Is It polite to publically correct someone's pronunciation? How do you write 2 or two people? What does the galic prase cead mille faite mean? Is mocking peoples a good thing in society? Formal way to say hello in Ukraine? What is mrs.murphy in french? How do I use please and kindly in the same sentence? Can you wear blue pants with a gray shirt with black shoes? What does for cripe pete mean? Has the hospitality industry changed over the past 50 years? Write a letter to your friend telling him about your inability to attend his marriage?