Body language expert gets into the nitty gritty of Prince William, Kate Middleton's love story

Prince William and Kate Middleton’s love has just been analyzed by a psychologist who went into the nitty gritty about each prolonged gaze, and tell-tale sign.

A British psychologist named Dr, Arthur Cassidy spoke to Hello! magazine about these hints Prince William seems to drop at every public event.

“Prince William, our ebullient and animated Prince, devoted father and protector, with his uniform as Colonel-in-Chief of the Welsh Guards, shows for a few milliseconds, a tight upper lip as he faces Princess Kate,” Dr Cassidy began by saying.

For those unversed, this analysis comes from the Royal Family’s most recent public outing, which was the Trooping of Colour event hosted each year to mark the reigning monarch’s birthday in good weather conditions.

“This signifies his positive emotional state as he's deeply in love with wife Kate,” the expert even noted.

“Mouth muscles controlling his lip movement include what we call elevators, which is the levator labii superioris at the top of William's strong jawline.”

And “when physically attracted to your spouse, in this context Catherine, this produces an intense inner emotional reaction to Princess Catherine's long-lasting loving gaze. His lips then become more relaxed."

Dr Cassidy isn’t the only expert who got up close and personal during her analysis, because Ms Judi James also chimed in, but shared a different side of the Firm.

In her eyes, their demeanor proved to the world they “are good at and what has been crucial for their survival: stoicism and the 'never complain, never explain' philosophy.”