The couple, Yan Bo, did not rush to move, only looking up at the little girl's twisting little butt as she walked over to the patch of grass. Then, when she was about a few dozen centimetres away from the grass, she stopped, and slowly, she squatted down.
The couple watched their beloved granddaughter with interest, the little girl squatting motionlessly there, her little hand propping her cheeks, her eyes still unblinkingly watching the mantis on the grass.
This time, it seemed the little mantis had realized that the little girl in front of it was no threat to it, so occasionally, it would hop a few times between the grass leaves or stand on a leaf waving its arms...
The little girl was utterly engrossed, staying silent, never disturbing the mantis.
The Yan Bo couple were the same, just quietly lying behind the little girl, the little girl watching the mantis, they were watching her and the mantis.