Wearing a kilt is a family tradition in the royal family, yet Prince William has - so far - refused to wear the traditional Scottish garment in public.
'The air kiss is a difficult ritual that often mystifies men,' a body language expert said of Prince William and Kate Middleton's smooch on the polo field.
Find out what a veteran journalist recalls about the day the Duchess of Sussex's royal protection officers decided to tell spectators what to do at a public event.
Prince William and Kate Middleton might be the faces of Kensington Palace, but they certainly can't do it all themselves. How many royal staff members does the couple have?