M is developing her sitting muscles, and has decided that really, she would prefer not to lie down if she can sit.
So she likes the bumbo (which is a very silly name, honestly).
And behaves sometimes as if she's both happy and plotting world domination.
M also works out by sitting up supported only by someone holding her hands.
And mostly she likes it.
But sometimes it all gets to be too much.
And then it's nice to have somewhere to lie down.
And someone to play with one's feet.