Kate Middleton returned to the public spotlight by attending Trooping the Colour.

The Princess of Wales had been out of the public eye for months. Fans were wondering where Middleton was after the Palace announced in January that she underwent abdominal surgery. In March, the future queen confirmed that she had been diagnosed with cancer. However, Middleton was reportedly confident when she made her first public appearance after her health scare and months-long absence.

"Kate's body language during this first-step return was a masterclass in what being a royal is all about," Judi James, a leading communication and body language expert who is featured regularly on BBC News, Sky News, GB News and CNN, told the Daily Mail. "She already had the template from the late Queen and it included stoicism and calm with not one drop of self-pity or drama."

Kate Middleton and Roya Family
(From L) Britain's Prince George of Wales, Britain's Prince Louis of Wales, Britain's Prince William, Prince of Wales, Britain's Princess Charlotte of Wales, Britain's Catherine, Princess of Wales, Britain's King Charles III and Britain's Queen Camilla stand on the balcony of Buckingham Palace after attending the King's Birthday Parade, "Trooping the Colour", in London, on June 15, 2024. JUSTIN TALLIS/AFP via Getty Images

The "Body Language Bible" author also praised Middleton's characteristics, which reportedly showed she was a "rightful heir" to the Queen title.

"Kate's approach to the public seems to be one similar to the approach she must have taken with her own children: one of confident determination, reassurance and even support," James continued. "In case anyone was in doubt, this appearance has shown her to be the rightful heir to the title of Queen."

James also shared what she observed between the Prince and Princess of Wales during the sighting. According to her, there was evident joy in the royal couple when they were reunited on the world stage.

"The most touching mutual reward signal came from William and Kate though when their eyes finally met," James said of the future king and queen.

Kate Middleton, Prince William and kids
Britain's Catherine, Princess of Wales (R) waves from the balcony of Buckingham Palace after attending the King's Birthday Parade, "Trooping the Colour", in London, on June 15, 2024. JUSTIN TALLIS/AFP via Getty Images

"William's eye-crinkling and the puckered muscles around his lips showed his inner pride and possible relief to have his beautiful wife standing beside him again, while Kate, who had relaxed visibly by this stage, pinged back a wide, dimpled and very loving smile."

While many were happy to see the Duchess of Cambridge finally. Her recent public sighting sparked debate on social media, with some questioning whether the woman was actually her or a body double.

"The Kate body double. This is not Kate Middleton," one claimed.

Another added, "That's definitely not her! Her face does not have the contour and sharpness that this replacement does! Those poor children know!"

"Kate Middleton has been missing for months. But don't worry -- here she is! It's definitely NOT a body double," a third person tweeted,

"She's real Prince Kate Middleton, I watch the ceremony live and she's really getting better from cancer," another person said.

Kate Middleton
Britain's Catherine, Princess of Wales, rides the Glass State Coach at Horse Guards Parade during the King's Birthday Parade "Trooping the Colour" in London on June 15, 2024. BENJAMIN CREMEL/AFP via Getty Images
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Kate Middleton, Princess of Wales, Trooping the Colour