Xu Zheng was engrossed with the sand. He shovelled sand into the bucket, packed it in tightly, and then turned the bucket upside down to leave a pillar of sand.
Frankly, Xu Ping didn’t see the fun in doing this, but Xu Zheng could do the same movements over and over for minutes, even hours, until all the sand was gone.
Xu Ping puckered his lips and returned to staring aimlessly at the sky.