Whoops - her aim was a bit too good. She nudges the remaining balls back towards him with her feet.

She frowns a little, considering his question. "Well, if I'm in a shape, I probably don't need hands for whatever I'm doing. But if I really did need my hands back for a few moments, I could just shift them and leave the rest of the shape alone." Shrugging, she adds, "It's trickier than just holding a full shape, though, and it might not work very well if I was in bird shape or something."