William Hanson became a viral sensation when he began posting etiquette tips on social media a few years ago, but Britain's leading etiquette coach has been teaching people around the world, protocol and good manners for the last 17 years.

Those people include Royal and VIP households, diplomats, and businesses.

He also holds two Guinness World Records for etiquette, one relating to curtsying and the other involving the largest cream tea party.