Lea's been on the verge of walking for the past two weeks now. She's been getting herself up and standing in the middle of the room, holding on to nothing, for long stretches of time. And she's been shifting her weight from leg to leg, kind of testing things out. Whenever she calculates that the object/person whom she'd like to approach is near by enough to attempt a risk, she's even managed to take a couple of steps (usually just one or two, but as much as four or five on a couple of occasions).
But she isn't quite there yet. Like Hallie, Lea is going to do stuff in her own sweet time.
Here's a video I took of her yesterday, which should give you a closer idea of what she's up to at this point.