Business Insider asked an etiquette expert what people should ... She also recommended checking the restaurant's dress code to avoid dressing inappropriately. Going out to a high-end restaurant ...

Of course, some rules are outdated, and etiquette has certainly ... with your order is a simple -- but important! -- factor ...

Some restaurant etiquette is just common sense ... "The Art of the Meal: Simple Etiquette for Simply Everyone." She shared some guidelines for dining at expensive restaurants.

and who doesn't want to look sophisticated when dining at a nice restaurant? There are certain guidelines even for simple aspects of the experience, like napkin etiquette at a fancy restaurant.