Whispering conspiratorially in her ear on stage at the Queen’s 90th birthday street party. A good-natured tease about her skyscraper heels that might have got stuck in a grille as they walked up the aisle in St Paul’s for a thanksgiving service for the Monarch.
And not forgetting the chat that reduced her to teeth-flashing, eye-crinkling giggles as they sat together during the same service, while Prince William stared blankly in the other direction.
It’s becoming rather hard to ignore how well Prince Harry gets on with the Duchess of Cambridge. Whether it’s at the London Olympics, weddings, Trooping the Colour or even sombre events like the World War I centenary commemorations in Belgium in 2014, Harry and Kate can often be seen side-by-side.