Zach is working on his mouse technique.
For example, here he has brought up the start menu...
...moving the mouse wildly around the screen...
...pop up a context menu or two...
...and disassemble the mouse.
Still teething...
Climbing on chairs
Check out that knee-hold technique!
I think these might be some of the first pictures of him
standing on his own.
But we're still in the stage of "what goes up must come down".