Prince George is 3 years old! In honor of this royal heir's birthday, we glance back at some of his cutest antics from years 1 and 2. You'll remember ALL these from your early kid-raising days!

Toddler on the Run

Exactly one year later, George was on the move again--but he'd picked up speed!

Fling and Fetch

This toy-toss brought on laughs from the royal family's Australian hosts. George must have pulled this maneuver often because Kate seems pretty well trained!

The Wiggle

Like so many toddlers, George can pivot his little body completely around to peer at whatever's catching his eye. In this case, his adoring fans!

Looking Innocent

Every mom has to say no--and Kate's no exception. Props to her, though, for not giving in at the sight of her son's adorably serious expression

Freaking (Great) Granny Out

Nothing pushes a grandparent's buttons like a dangerous move. Luckily, Prince William has his hand at the ready!

Crawler on the Loose

At his first polo game in June 2014, George was eager to join the fun until Kate scooped him up.

Get Ready for Tears

At his first official engagement, George ran through a range of moods. Here, he looks ready for a nap (or snack).

Want Mommy

Sure dads are great--but not when mom's around!

Stealth Thumb Sucking

George was on his way to the park with his nanny when the paparazzi snapped this shot.

Hair Yanker

You take your chances if you let your locks down with a baby in your arms.

Public Meltdowns

At least he wasn't doing this at the grocery store!

Grab and Go

He didn't let go of that toy car (willingly at least) for the whole day!

Being the Protective Big Bro

Yes, you've seen this pic a million times! But George hit a sweet toddler milestone when Charlotte came along--and he seems pretty pleased by her arrival.