Spectators were thrilled to see Kate Middleton attend the Christmas Day church service at Sandringham, especially given the challenging year she has faced health-wise. However, one expert in human behavior believes the Princess of Wales may have revealed subtle cues about her current feelings toward Prince William during the event.

Kate, joined by Prince William and their three children—Prince George, Princess Charlotte, and Prince Louis—participated in the royal family’s traditional walk to St. Mary Magdalene Church. They were accompanied by other senior royals, including King Charles, Queen Camilla, Prince Edward, and Sophie Wessex, along with extended family members such as Princesses Beatrice and Eugenie and their children.

As is customary, the family greeted members of the public, receiving flowers, gifts, and chocolates. Among the onlookers was body language expert Judi James, who carefully observed Princess Kate during the appearance, following her battle with cancer earlier this year.

Judi noted that upon her arrival, Kate displayed an air of “tiredness” and a “moment of concern,” perhaps still apprehensive about being in the public eye after announcing her diagnosis in March. However, as the event progressed, Judi highlighted the visible support William offered Kate, noting how their interactions reflected their bond.

“She looked across at William, and they exchanged a glance that came with an ignited smile,” Judi told the press. “Her expression responded to his grin with an instant and wide smile of her own.”

This exchange, Judi added, was “perhaps the biggest body language cue of the current relationship” between the couple. “Even at a distance, William showed his strongest moment of support, and Kate’s smile in response seemed to reflect genuine happiness and gratitude.”