Meeting the Royals: Clip our handy tip sheet just in case

With Prince Charles and Camilla, the Duchess of Cornwall, in town this weekend, there’s every chance you might bump into them on Sparks Street and wonder what to say, or what not to.
Luckily the Royal Family’s supporting staff has a tip for meeting the Royals. 
From the British protocol experts: “There are no obligatory codes of behaviour when meeting The Queen or a member of the Royal Family, but many people wish to observe the traditional forms.”
Men do a “he