He sat perfectly still, looking up at me over his glasses.
Harvard students are known for many things, but sitting perfectly still is not one of them.
You will sit perfectly still and not move in any way.
The ten boys stopped talking and sat perfectly still staring at him.
"Thank you," said the straw man, and sat perfectly still for half an hour.
Mack sat perfectly still, almost as though he could hear the music too.
She sat perfectly still, staring forward where the images had been just seconds before.
She sat perfectly still, holding his hand, the color on her cheeks coming and going.
He'd never before felt his heart pound like this while sitting perfectly still in an empty room.
She sat perfectly still as the big cat put his front feet on her knee.