What an exciting day for the Royals - Kate and the rest of the Royal Family attended a reception at Buckingham Palace for foreign heads of state and government, hosted by the Queen.
I wonder what on earth Kate talks about to all those foreign dignitaries? Could you think of anything worse than having to make small talk with the world's leaders?
From the reception Kate went straight to the Opening Ceremony.
She, Will and Harry sat directly behind the Queen and the Prime Minister - Surfer Boy wanted to know if they had to buy their tickets - I'm tipping they got in free.
Kate wore - a pale blue coat dress by Scottish designer Christopher Kane.
Oh and look who just posted a photo of herself on Facebook....you never who who is hiding in the crowd!