With the world watching, Prince Harry and Melania Trump had their first meeting in Toronto on Saturday - the first sit-down between a member of the Royal Family and the First Family since the presidential election.
It was predictably frosty and somewhat secretive; their 30 minute chat was kept private.
But a body language expert called in by DailyMail.com has shed light on their face-to-face which, they say, may have been just as uncomfortable as it looked.
Patti Wood, who has studied body language for decades, was able to glean a huge amount from just a brief video clip of the meeting.
Harry, who is usually laid back and welcoming, was subdued and restrained and did not want to appear to be too excited about his sit-down with the First Lady, she explained.
'He started with his hands clasped and he's gesturing very low to the body. It felt like he needed to protect himself during the interaction.
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Body language expert Patti Wood picked up on Harry's closed off, clasped hands which showed he was eager to protect something during his meeting with Melania Trump in Toronto on Saturday
'It's proper etiquette but it's interesting because it assumed there's something to be a little bit concerned about,' she said.
By keeping his hands low, Harry was displayed a 'subdued', low energy, she continued.
'My guess is the cameras and the fact that he's talking to her, he's having to subdue his normal animation. He doesn't want to seem too excited to be with her,' she added.
His reluctant smile also revealed his nervousness at being seen to enjoy the meeting, Wood said.
'He doesn't smile at her, he just has a smile like 'I should be smiling but I can't be smiling,' she said.
When he did gesture, the prince demonstrated what is known as 'flinging away' which shows emotions he is 'flinging out', the expert said. He kept his smile tight and did not ever smile directly at the First Lady
Melania showed off a 'full wattage' smile at the end of their meeting and appeared to be happier about it