10 things you should never do at a dinner party, according to a longtime butler

Whether attending a dinner party for business or pleasure, there are certain things you just shouldn't do.

You may also find yourself in a sticky situation where you're not sure what to do.

Author and longtime butler Charles MacPherson answers all in his book, "The Pocket Butler: A Compact Guide to Modern Manners, Business Etiquette and Everyday Entertaining."

Here are 10 pearls of wisdom from his 26 years of experience.

Brittany Fowler wrote an earlier version of this post.