The aliens watched quietly as the humans talked.

The aliens waited, watched, but did not pursue them into interplanetary space.

"If aliens watched us make a film, they would think we were ridiculous," he says.

The aliens watched and waited, perhaps a hundred paces away.

The aliens watched him, tense but not obviously afraid.

The aliens watched her carefully and talked anxiously.

He was reasonably sure, however, that the aliens would be watching and seeking only for the merpeople.

Stemple glanced up from his books, suddenly aware that the alien was watching him.

Having the aliens watch as she walked to the cleaning bin made her intensely self-conscious.

Curious aliens watched them from above, hanging on to cables by hand or foot.