Kate Middleton and Prince William's children Prince George, Princess Charlotte and Prince Louis appear "confident, focused and enthusiastic" in an adorable environmental video message for Sir David Attenborough, a body language expert has said.
And now body language expert Judi James said the trio's personalities really shone through in the sweet video.
Judi said the young royals put on a "confident, focused, enthusiastic" display and that the children were "clearly keen to learn".
She says Prince George demonstrated a "very traditional royal manner" in his posture during the clip. But it was Louis – whose voice was heard for the first time – who stole the show.
Speaking to Fabulous Digital, Judi said: "Charlotte holds her hands in front to ask her a very serious question about spiders but it's Louis who looks like the most confident TV performer here, taking a deep breath and opening his mouth wide to shout out his question with maximum enthusiasm."
The clip marks the first time the British public have heard Prince Louis, two, speak in public and the most that Prince George, seven, and Princess Charlotte, five, have also been seen speaking.
First up in the sweet video was eldest Prince George, who asked David Attenborough what animal he thinks will become extinct next.
Sir David replied: “Well let's hope there won't be any because there are lots of things we can do when animals are in danger of extinction – we can protect them.
"About 40 years ago I was with some mountain gorillas in the centre of Africa. Mountain gorillas were then very, very rare – there were only 250 of them left.
"We showed pictures of them on television around the world and people thought how terrible it would be if these became extinct.
“So they subscribed lots of money and lots of people came to help and now there are over 1,000 of them.
"So you can save an animal if you want to and put your mind to it. People around the world are doing it because animals are so precious so let's hope there won't be any more that'll go extinct."
Princess Charlotte then asked the 94-year-old: “Hello David Attenborough! I like spiders – do you like spiders too?"
Sir David said: “Why is it that people are so frightened of them. I think it's because they have eight legs - much more than us.
“If you've got eight legs you can move in any direction. You can never be quite sure which way that spider is going to go."
He then said people were often put off by the hairy legs of the creatures and urged the princess to watch the insects closely as they build their webs, adding: “It's marvellous.”
Little Prince Louis, the youngest of the Cambridges’ kids then excitedly asked Attenborough: "What animal do you like?"
Sir David revealed his favourite animal are monkeys because they’re "such fun" and can "jump all over the place."
The environmentalist then admitted you couldn't have a monkey in your home – making the tough choice between a puppy and a kitten.
Eventually, Sir David said: "I think I’ll go for a puppy."