Kate and William ‘have lost none of that spark’ as seen in ‘most flirtatious’ picture

“Sitting leaning in towards his wife with his arm on the arm of the seat and wearing an edge-to-edge of the teeth, wide smile that signals excitement and a very youthful sense of happiness.

“Kate leans in towards him, pushing her head towards his as she performs an almost identical smile of utter joy.

“Her double hand clasp is one of the most powerful PDAs we’ve seen from the couple.”

The body expert continued: “With one hand under his and the other lying on top to display her engagement ring, Kate appears to use this non-verbal signal to show how precious her husband is to her.