As Baby George arrives at the hospital with his father, Prince William, the 21-month-old once again proves he's an expert waver

Credit: Chris Jackson/Getty; WENN

Prince George is officially a big brother, and naturally, he’s accepted his new role with the grace and class we’ve come to expect from the 21-month-old.

Right before the young royal joined his parents, Princess Kate and Prince William, at the Lindo Wing of St. Mary’s hospital in London to meet his new baby sister, Prince George waved to the crowds – and, once again, stole our hearts.

We take a look back at all of our favorite Baby George waves.

First, his regal arrival at St. Mary’s hospital:

The “Throw It On the Ground” Wave:

The “I Was Just Born” Wave:

The “Accidental” Wave, from his christening:

The “I’m Just Goofin'” Wave, from a playdate:

The “I Was Just on a Plane for Several Hours” Wave:

The “Woooo This Is a Fun Ride!!” Wave

More on the New Royal Baby:

• All About the 6 Essential Women in Princess Kate’s Life