The Princess of Wales gave husband Prince William a "cold hard stare" as a "power play signal" during their latest outing together, a body language expert has claimed.
The couple celebrated St Patrick's Day with the Irish Guards last week - the first for Kate in her new role as Colonel of the regiment.
She takes over from husband William, who was the Irish Guards' former Colonel, but now holds the same job with the Welsh Guards as Prince of Wales.
At the parade on Friday, Kate took the salute for the first time and also handed out the customary sprigs of shamrock.
According to body language expert Judi James, the couple did appear their normal relaxed selves - but Kate then had to adopt "a more serious look" in her new role as "Colonel Catherine".
And Judi explained this resulted in her shooting the "cold, hard stare" towards her husband - who actually looked on with pride.
She told the Express: "She stands fully to attention as she fixes William with what looks like a seriously cold, hard stare.
"The look shows how seriously Kate is taking her new role. Her body language is immaculate here and military, rather than royal.
"William's response to her stare is a very puckered-looking smile to suggest pride and perhaps a sense of respect for the woman who is taking over his role."
It comes as another body language expert also claimed that the princess stood out from the crowd and her husband as she took the reins at the important engagement.
Speaking on behalf of Betfair Bingo, Darren Stanton said: "Kate appeared very confident as she exited from the car, while William accompanied her in the vehicle.
"I would definitely say Kate was dressed in her superhero colour, which is usually red, blue or turquoise. It's clear she wanted to stand out from the crowd and assert her authority over William and the other guests.
"As this was Kate’s first appearance as Colonel of the regiment, she clearly wanted to state her position and make herself known amongst the crowds in the bold colour.
"During the appearance, Kate appeared extremely confident in her posture and stance. She was walking very upright as she was called upon to inspect the guards. Meanwhile, William seemed more reserved in his approach, possibly because he did not want to overshadow his wife.
"I definitely believe Kate was at her strongest during the parade in respect of her levels of confidence. Obviously, William is used to these types of events after being in the army, however, Kate clearly took the engagement in her stride."
