While waiting for King Charles to arrive at the Coronation, Prince Harry allegedly made a bizarre gesture towards Princess Anne.
The Duke of Sussex turned up to Westminster Abbey on his own as wife Meghan Markle is staying at home in California with their children, Prince Archie and Princess Lilibet.
He first appeared along with Princesses Beatrice and Eugenie, then walked between his two cousins and their husbands, Edoardo Mapelli Mozzi and Jack Brooksbank.
Harry was sat down next to Eugenie's hubby Jack and Princess Alexandra - the cousin of the late Queen who hasn't had a working royal engagement in a decade.
According to body language expert Judi James, nervy Prince Harry showed 'subliminal signs of tensions' as he waited for King Charles to arrive.
She tells The Mirror: "As Harry waited in his seat for his father and brother to arrive there were some subliminal signs of building tension or anxiety.
"He sucked his lips in and licked them and his blink rate increased, suggesting adrenalin prompted by nerves."
Judi then says that the Duke of Sussex started staring at Anne, who was sat in the row in front, making an unusual gesture.
She continues: "His eye-gaze fixed on his aunt Anne who was chatting in the seats in front and then his head dropped down."
Harry had to wait for he Prince and Princess of Wales and their children to arrive, before man of the moment Charles rocked up at the Abbey.
Judi has also explained how Harry looked happy when he arrived with his royal cousins.
She explained: "Harry arrived with the Sussex posse, the royal cousins Beatrice and Eugenie and their husbands, who have remained friends throughout the royal rifts.
"Chatting first to Edo he then got the attention of Eugenie and Jack and we saw an incredible return of the joker prince as Harry grinned and used two hands cupped widely under his stomach to do what looked like a mime of Eugenie’s heavily-pregnant state.
"After making the couple laugh, Harry fell back to walk in alone."
Judi also explained that Harry was very confident when he walked into the Coronation.
The body language expert added: "Still smiling and with his cheeks rounded, he then proceeded to perform a display of what looked like rather cocky bravado. His striding walk looked jaunty as he pushed one side of his jacket away before making his way up the aisle nodding, grinning, using eye-brow flash rituals and chatting with people in the congregation as though signalling to the world that he was upbeat, confident and happy to be back."
While walking in, Harry gave courteous greetings to some of the other guests, saying "hello", "morning" and "nice to see you" to various people.
Our lip reader has also claimed he said "look at that" while noticing the grandeur of the occasion and also said "delightful".
It is believed that seating arrangements had been one of the sticking points that had caused a delay in Harry responding as to whether he would attend the historic event.
Harry won't be hanging around for long as it's believed he will be dashing off straight after the ceremony to get back to the States.
Earlier this month, a royal source told The Mirror : "After much back and forth, Harry said that he would be returning for the King's Coronation but it will only be a fleeting visit.
"Organisers have been told Harry won't be attending the concert with the rest of the Royal Family, which is a great shame as it will be such a spectacular event."
