[i]That walnut is going down![/i] Mikone thought to herself, eager to test again. Under her teacher's guidance she felt happier around the group since he handled them so well already. Perhaps it wouldn't have been the same with other teammate or even the teacher. Hoping she'd never get on her sensei's bad side, she got a walnut in her hand then looked at the others. It was real obvious that the walnut wasn't going to break without something real tough pounding against it. [i]I guess it's either brute strength or ingenuity now.[/i] 

She looked at the walnut, trying to find any form of cracks already existing. Nothing but the external shell of wooden steel.

Feeling it was appropriate since the other genin were doing it, she put the walnut on the ground then used a bigger looking rock to smash it to bits. And like that the seed of a newborn tree was no more than rubble underneath the powerful stone in the girl's hand. 

"Was that what you were looking for us to do?" She said, worried that it was in fact a strength test.