Prince Harry showed tell-tale signs he "truly believes" in his comparison between wife Meghan Markle and his late mum Princess Diana, a body language expert has said.
In the first episode of the eagerly-anticipated series, Harry, who was just 12 when Diana died following a car crash, said Meghan is "so similar" to her.
He recalls how the two women share the same compassion, empathy and confidence and how Meghan has a "warmth about her".
And according to body language expert Darren Stanton, Harry's emotions and non-verbal cues signalled his genuine feelings, when speaking about the similarities between his wife and late mother.
Speaking on behalf of Betfair Casino, he said: "At one point in the documentary, Harry compares Meghan to his mother, Princess Diana.
"He speaks about how compassion, understanding, communication and empathy were the core values that drove his mother’s behaviour. Perhaps this is what initially drew Harry to Meghan.
"When Harry was speaking about Meghan, I did not see any signs of deceptive behaviour or that he was faking his emotions for the cameras. His body language and behaviour seem to be totally congruent with what he is thinking.
"From his non-verbal communication, it's apparent that he truly believes Meghan is similar to Diana.
"Another thing that tells me he is being completely genuine about what he says about Meghan, is that he becomes more serious in the clip.
"When we think about people we have lost in life or certain traumatic situations, our mind triggers some of those feelings and thoughts.
"It's clear from Harry’s non-verbal communication that when he was speaking about his mother, we did see some micro-expressions of sadness. This is a clear indication that he still greatly feels loss for his mother."
In the series, archive footage of Diana and Harry’s father, the then Prince of Wales, with Harry and his older brother William at Harry’s christening and during other arranged photocalls were shown in the tell-all series Harry & Meghan, which began streaming on Thursday.
"My childhood, I remember, was filled with laughter, filled with happiness and filled with adventure," he says.
"I don’t have many early memories of my mum. It was almost like internally I sort of blocked them out.
"But I always remember her laugh, her cheeky laugh, her always saying to me 'You can get in trouble – just don’t get caught'.
The same part of the episode shows Meghan holding Archie in front of a framed photograph of Diana and telling him: “That’s your grandma Diana.”
Harry adds: "I accept that there will be people around the world who fundamentally disagree with what I’ve done and how I’ve done it, but I knew that I had to do everything I could to protect my family, especially after what happened to my mum.
“I didn’t want history to repeat itself.”
