"Have you bumped into the Queen yet?"
Speaking with hospitality workers visiting from the Caribbean, in a scheme set up by the monarch, the prince says: "You guys have spent way more time in Buckingham Palace than I ever have - and you've only been here two weeks".
He also asked the recruits whether they'd bumped into the Queen, before offering them some advice.
Kensington Palace earlier confirmed Meghan and Harry would embark on a 15 day royal tour coinciding with the 2018 Invictus Games in Sydney, which will see them visit nine cities across Australia, New Zealand, Fiji and Tonga. If you suddenly bump into her in the corridor, don't panic.
It will also feature "behind-the-scenes moments with The Queen and other members of the Royal Family, including Prince Charles and Camilla, Duchess of Cornwall; Princess Anne; Prince William and Catherine, Duchess of Cambridge; Prince Harry and Meghan, Duchess of Sussex; and the Countess of Wessex".
Royal admirers caught a glimpse of the special moment on Monday when ITV released a trailer for its new documentary, Queen of the World.
In the film, Meghan can be seen smiling up at her dream dress and running her fingers over the veil's detailing.
She talks about the Commonwealth, and the symbolic importance of the floral Commonwealth emblems that were sewn in to her five-metre long silk veil. In addition to those flowers, Meghan had some personal touches added to her gown. "Harry and Meghan can't be there because they will be overseas".
"53 countries! Oh my goodness", she said while discussing the role associated with her new royal title.
'There was lots to do, all sorts of places to go and things to keep clean, lots of scrubbing and polishing, that was part of our role'. The new royal will attend the opening of "Oceania" at the Royal Academy of Arts on Tuesday 25th September.