Royals made a welcome appearance at the showpiece event on Saturday morning

Britain's Prince Louis during the annual Trooping the Colour parade in...

Britain’s Prince Louis during the annual Trooping the Colour parade in LondonTOLGA AKMENEFE

Prince Louis was an excitable presence at Trooping the Color, attending the event with his mother, Kate Middleton, the Princess of Wales, and his siblings.

His lively demeanor included dancing to the music, although he had a brief exchange with Princess Charlotte, according to a lip reader, which was less than pleasant.

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It’s naturally for brothers and sisters to squabble at that age, however as goes with the territory of their Royal positions, every single word is going to be picked up by somebody.

It was a sideshow to the main story of the day, which was Kate Middleton, the Princess of Wales, making her first public appearance since announcing her cancer diagnosis earlier in the year.

What took place between Louis and Charlotte?

The Princess of Wales, along with Prince George, Princess Charlotte, and Prince Louis, watched Trooping the Color from a balcony after a carriage ride down the Mall.

At Horse Guards Parade, Kate stood with her children as the regiments, in red ceremonial dress, paraded. During the Scots Guards’ quick march to “Highland Laddie,”

Louis‘ dancing delighted the crowd but seemingly annoyed his sister, who quickly took him to task over his behavior.

Lip reader Nicola Hickling observed an exchange between the siblings.

“You have to stop doing that. Watch the parade,” Charlotte reportedly scolded.

“I won’t,” Louis replied.

“Do as you’re told,” was Charlotte’s response.

“Nope,” Louis concluded.

TOLGA AKMENEFE

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Kate appeared to have her hands full as Louis continued to be distracted during the ceremony, even though she has been undergoing extensive treatment for her illness.

On the balcony, Louis cheekily tugged on the blind cords while his mother watched closely. Later, he was seen yawning while watching the parade from the Duke of Wellington’s former office.