Kate Middleton, Prince William Are 'Perfectly In Sync' In These Photos

Kate Middleton and Prince William are compatible and their gestures show this.

Hello! shared several photos of the Duke and Duchess of Cambridge making similar gestures at the same time. One snap featured the royal couple waving to the crowd at the balcony during their royal wedding in 2011.

According to the publication, the couple is in sync whenever they wave. The photos feature Middleton waving her right hand while Prince William uses his left.

In related news, a body language expert commented on the way Prince William and Prince Harry kiss their wives. According to Judi James, the princes inherit their romantic side to their mom, Princess Diana, but it's the Duke of Sussex who mimics their mom's public display of affection.

"William has always been appropriately cautious for a man who is heir to the throne and his non-verbal behaviour since his teens often signals more introvert traits, in direct contrast to his extrovert, risk-taking younger brother Harry," James explained

According to the expert, Prince William's kiss to Middleton at the polo is "suitably cautious and free of any open displays of emotion." On the other hand, Prince Harry and Markle's kiss is more passionate with a "celebrity approach to their PDA's."

"Harry seems happy to mimic his mother's trait of public displays of hugs and affection William might have grown up more aware of the potential risks involved," James said. "When he does show signs of holding back at all she will always give him a cue to be more open, as she appears to here in this very intimate and rather sexy kiss at polo."

On the other hand, another expert said that Prince William and Middleton have a "high compatibility" compared to Prince Harry and Markle. According to Tracey Cox, the Duke and Duchess of Cambridge don't need to show their love through PDA due to this reason.

"They are absolute best friends, they are in the companionate stage of the relationship and have a strong tested love. They don’t have to do soppy eyes at each other, they don't have to touch each other every second," Cox said about Prince William and Middleton. "And one of the reasons is that they have been together for so long and grew up together. They have got high compatibility, whereas Meghan and Harry they are still getting to know each other."