Especially when he experienced the joy of walking...
...which to my eyes, it's more like jaywalking.
And then, he started climbing.
I could see the sparkle in his eyes when he managed to climb something.
Or he would make a face like..., "See? This is nothing."
My own little Adventurer,
you may give me a heart attack or two...
but it doesn't matter,
for I'll always take care of you.