See Every Photo from Prince Louis' Big Trooping the Colour Debut on Buckingham Palace Balcony

The littlest royal on the balcony at Saturday's Trooping the Colour festivities, little Prince Louis showed he's already following in his siblings' footsteps, giving the crowds a peek at his perfect royal wave.

Prince Louis, 1, who wore a blue and white outfit that was reminiscent of the outfits brother George and dad Prince William wore for their debuts, made his balcony entrance in the arms of mom Kate Middleton.

Louis kept his eyes to the sky like Mom in anticipation of the colorful flyover.

Louis, who immediately began to wave excitedly to the crowds below, then reached for William who held him for the remainder of the iconic flypast.

The 1-year-old royal waved throughout the celebration to the delight of his mom. When the family turned to go back inside the palace, he even waved to grandpa Prince Charles.

Louis celebrated his first birthday on April 23, which means he’s around the same age as Charlotte was during her first Trooping the Colour appearance.

Prince George, who turns 6 in July, was a little older – nearly 2 – when he made his Trooping the Colour debut in 2015. That’s likely because at 10 months old, he was too young for the exciting event the previous year.

See the resemblance?

Will and Kate couldn't help but crack up at their little one's antics.

Kate is a master at managing her kids at such public events, famously comforting Princess Charlotte at last year's event when she took a little tumble on the balcony.

The Cambridges were as sweet as can be during the event.

Kate doted on her little one, while George and Charlotte stuck together.

The little guy fit right in amongst the grown-up members of the royal family.

He even pointed to the planes as they flew past.

One more wave from Louis (and Charlotte!).

Well done, Louis!

Can you spot little Louis?

Little Louis couldn’t wait for his Buckingham Palace balcony debut to show off his first-ever royal wave. The prince joined big sister Princess Charlotte in taking a peek out the palace window to catch a glimpse of the crowds gathered for Trooping the Colour festivities on Saturday, raising up his hand to greet spectators and excitedly pointing at the growing crowds.