Watch him go!

It starts innocently enough: you install the baby on his play mat with a toy so that you can do a bit of laundry. You come back and he looks at you, big toothless grin, already rather far from where you left him. And as the day progresses, you watch him catch how this whole moving thing works.
He still hasn't mastered the front to back roll so will get stuck and "ask" for help. But he did some very big progress today. Not bad, considering the day was spent resisting sleep, crying and needing how nose cleaned!