Body language expert Darren Stanton discussed Kate's recent stop at the Royal Navy air base in Somerset and William's meeting with UN chief Antonio Guterres in New York.
"Kate definitely put the officers at ease. You can tell she has a very caring, and nurturing nature about her - even with people she's never met before," Stanton explained in an interview. "Looking at her genuine smiles, I know there was a big level of trust between her and the people she was interacting with."
"We then saw her shaking hands with people, and people formed a circle around her, so she was very much the center of attention," the hypnotist shared.
Stanton noted that the Princess of Wales has grown into her role as a senior-level royal.
"You can see how much she's evolved in terms of her independence," the author shared. "She has completely stepped up - especially after the passing of the Queen."
The mom-of-three was able to have fun, and she maintained a sense of composure.
He later claimed that some of the men at the center were hitting on the princess, but she didn't entertain their advances.
"Some of the guys gave a few flirtatious signals here and there. Kate didn't respond - she was polite and friendly but respectful of William," he continued. "We saw her really letting go. She looked relaxed as her shoulders were down, and had lots of natural interaction with the staff."
Kate was at ease in a male-dominated space, and her strength reminded Stanton of another royal spouse.
"She wasn't phased by William not being there," the television personality pointed out. "There's a very similar trait between Charles and Camilla and William and Kate — in that both the men lose a bit of their confidence when their partners aren't by their sides. Whereas Camilla and Kate show they are strong and independent on their own."
Even though Kate was fine, there was a noticeable difference in William's mannerisms during his outing in New York.
"While Kate is naturally quite confident during both solo and joint engagements, William appears more sure of himself when in the company of his wife," Stanton speculated. "While he still holds himself in a way that would be perceived as a confident manner to the public, gestures like placing his hands in his pockets and his smile not seeming as engaged would signal that he is feeling some manner of nerves during his solo trip."
The Prince and Princess of Wales have been each other's support system for 22 years, but Stanton believes the future king hasn't mastered attending things without Kate.
"Kate is William's rock and we often see him letting her take the lead during their joint engagements, with the royal happy to watch on proudly as she takes charge during interactions," Stanton voiced.
"Out solo, William takes a more reserved approach and isn't as animated as he can be when joined by Kate," the commentator concluded. "The use of minimal gestures during his first outing in New York is similar to those made by the late Queen when appearing publicly. He chooses to have more of an understated yet stoic presence."
Stanton spoke to The Mirror.