Physical signs specialist Darren Stanton was commenting on the Sussexes date night out to watch the Vancouver Canucks against the San Jose Sharks at Rogers Arena in Vancouver, Canada, on Monday.
Mr Stanton explained: "In the past Harry would be a more introverted version of himself when he was alongside Meghan and more extroverted when he was by himself but now he seems to have found himself. He has come into his own and is his own man.
"I think he has found his inner strength, previously he hasn't shown this despite his position and it looks to have shifted in a way."
Mr Stanton added that the Duchess of Sussex, 42, "recognises that Harry is a powerful person as a royal" and he thought "she might feel slightly less dominant at that moment".
He continued: "They both seem confident, Harry doesn’t look nervous at all which is quite unusual, as it is usually when he is on his own that he comes across this way but he appears very confident and relaxed.
"It seems as though something in the dynamics or the power balance of the relationship has shifted."
Prince Harry's show of "confidence" comes as Meghan appeared on the red carpet of the Variety Power of Women event in Los Angeles on Thursday last week to celebrate the accomplishments of women in entertainment.
Wearing a camel, off-the-shoulder dress paired with a slicked bun, Meghan said she is "really proud" of the projects Archewell Productions has created so far, including docu-series Harry & Meghan, while also teasing future projects.
Meghan told Variety on the red carpet that she wants to create "things that make people feel" as well as create "a sense of community". She said: "We have so many exciting things on the slate."
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Royal fans upset as King Charles failed to issue new item for last night's state banquet
There was speculation on social media last night that King Charles was set to debut his Royal Family Order at a State Banquet held for the President and First Lady of South Korea.
A Royal Family Order (RFO) is a brooch-like decoration gifted from the head of the Royal Family to other members, particularly female relatives.
One avid royal fan wrote on X (formerly Twitter): "Will we finally see the Royal Family Order of King Charles III tomorrow night during the state banquet on occasion of the South Korean state visit? Queen Camilla and other ladies will wear that one together with the Royal Family Order of Queen Elizabeth II. It's about time!"
King Charles's light hearted speech leaves President Yoon chuckling at banquet
King Charles hosted South Korean President Yoon Suk Yeol and First Lady Kim Keon Hee with a banquet at Buckingham Palace last night.
The evening celebrated South Korean culture, with global superstar girl group Blackpink also in attendance.
In his speech the King poked fun at himself, as he recalled: "Sadly, when I was in Seoul all those years ago, I am not sure I developed much of what might be called the Gangnam Style"
King Charles 'went ballistic' at Prince Edward in angry row over Prince William
King Charles was once furious with his youngest brother Prince Edward after he crossed a line involving Prince William.
In 2001 William was a student at St Andrews University, and there was an agreement with the press that he would be left alone and no pictures of him published.
However two men from Edward's company Ardent Productions were then caught filming up there, upsetting the royals.
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Inside England's Rugby World Cup win 20 years on as Prince Harry plays bongos
EXCLUSIVE: On November 22 2003, England won the Rugby World Cup in Australia, beating the home side 20-17.
According to the players themselves, they enjoyed an epic after party in the Cargo Club at Darling Harbour.
At one point Prince Harry joined them to play the bongos with player Lawrence Dallaglio.
Princess Eugenie gives rare update on son Auggie as she shares glimpse into meal time fun
Princess Eugenie and her husband Jack Brooksbank have two sons, August, two, and seven-month-old Ernest.
Speaking on the latest episode of the Table Manners podcast, she told hosts Jessie and Lennie Ware how her children were allowed "knees at the table".
She said of her own childhood: "So like my mum, if I had a knee at the table, she'd say, Are they invited to lunch? Are they invited to dinner? And so they'd be down.
"But it was like a funny thing. So now if any of our friends are around and they put their knees up my mum's like, you know."
Princess Eugenie lifts lid on her 'most rebellious moment' in new podcast
Princess Eugenie has given a fresh insight into her own "rebellious moment" in the latest episode of the Table Manners podcast, hosted by Jessie and Lennie Ware.
Speaking the singer and her mother, she said: "I think my rebellious moment was going to New York, but not because I was rebelling.
"I wanted to see what life was like and how I had to do things."
The youngest York daughter spent two years in New York after she was offered a job working with the auction house Paddle8.
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