Kate Middleton reportedly made a swift head-turning gesture from Queen Camilla during the historical Trooping the Colour event on Saturday according to a body language expert, as royals gathered to mark the monarch's 74th birthday.
On November 14 each year, King Charles marks his birthday privately, but each year in June he marks his "official" birthday with the military spectacle where the most prestigious regiments in the British Army honour the monarch by parading for the special day.
Charles rode in the parade on a horse called Noble after riding from Buckingham Palace to Horse Guards Parade, he then lined up alongside Prince William, Princess Anne and Prince Edward as well as Princess Kate and Queen Camilla.