He rubbed his knee and started to back towards the door.

Lips compressed, she rubbed her knee where she'd hit it against a table.

"I used to skate eight hours a day morning to night but not anymore," she said, rubbing her sore knee.

He lowered one hand and rubbed his right knee with a grimace.

Alone in the corridor, Jim leaned against the wall and rubbed his knee.

He rubbed his knee, but then went right back on the floor.

"And why did all the others used to rub my knee with ointments?"

The comment was followed by his reaching over and rubbing her knee.

She sat close to me, rubbing my knee, holding the glass of water, listening carefully.