"No elbows on the table, please." Along with saying "please" and "thank you", this was only one of the points of etiquette I was taught at my family dinner table here in the United States. But what if you lived in another part of the world? Here's a fun little interactive tour of dining etiquette so you can be prepared for the politics of politeness on other parts of the globe.
Incidentally fun fact: The word "elbow" was selected as the most beautiful word in the English language by persons who did not speak English.