It's fun watching Simone starting to learn to walk. She's at the point where she sometimes tries walking while only holding on with one of her hands in yours, with the other one either free floating or holding onto the couch/chair.
One thing I've noticed is she seems to exhibit the kind of behaviors I remember when I first learned to rock climb. You get to a point where you're too tired to do anything but hold on, and you get scared b/c you need to move, but you can't. There's also the obvious problem of keeping your weight over your feet - same thing in both climbing and learning to walk. And there's always the fear of falling, even though you know it won't hurt (b/c you're either 2 inches off the ground, or you're tied in).