Queen Elizabeth stepped off the train in Cheshire, wearing a lime green Stewart Parvin dress and jacket with a matching hat by Rachel Trevor Morgan.
While we were busy noticing how thoughtful Prince Harry was with Meghan Markle on the balcony during their Trooping The Colour appearance, and the sweet moment she shared with sister-in-law Kate Middleton, we nearly missed one key detail: that her dress was a subtle nod to Princess Diana.
The queen and the Duchess of Sussex, as Markle is now known, travelled by a special royal train for a series of events Thursday.
She let her hair fall down on her shoulder.
The awkward exchange comes as Meghan continues to adjust to life as a full-time royal.
Brian Hoey, author of At Home With the Queen, writes: 'The train seems to be the one place where, when away from home, the Queen and her family can truly relax out of the public gaze'.
That being said, following her first solo engagement with the Queen in Cheshire, a body language expert says that Markle looked 'a bit bored'.
In the end, it was Her Majesty who made way for Meghan quickly saying: "You go first".
"It was, however, a considerate gesture from the Duchess of Sussex to consider where the Queen would like to sit".
The Queen walked down one side of the road and Meghan the other as they stopped to chat to people and collected dozens of floral bouquets and other gifts. "And keep in mind I've been working on my show for seven years", she told the BBC.
They then visited the Storyhouse arts centre, where a smiling Meghan occasionally leaned over to make a comment to the Queen as they watched performances, including songs by a choir of local schoolchildren.