One sitting uncomfortably close made a production of cleaning his nails.

He drew a knife from its sheath and began to clean his nails.

He'd put the gun down on the desk, had taken the knife out again and was cleaning his nails.

He took out the paint-can key and began to clean his nails with it.

Stein went back to cleaning his nails, paying exaggerated attention to them.

He took out a flick knife and began to clean his nails.

He brought out a large clasp knife, opened it up, and began cleaning his nails.

The doctor shrugged and went back to cleaning his nails.

He spent five minutes cleaning his nails with a nailbrush.

The man was cleaning his nails with that wicked knife.