A long time passed while the girl sat alert and motionless.

She heard his key in the door, and sat alert.

He might be the last bird off the cat, but at least he wasn't sitting alert five.

Your flight crews are going to be pulling some long hours sitting alert.

He sat alert on the seat with his nose pointed in the direction of the saloon.

Jane Clayton sat alert in the stern of the last canoe.

The solitary man in the blue room sat alert as the buzzer sounded.

For the first time I noticed a little white terrier, sitting alert in a basket.

He turns and glances at Aiah, sitting alert in her chair.

Hand on the latch, he sent a glance to the twins, sitting alert in their places.