There was a peacock quality about the man; he covertly watched others to see whether they were watching him.

It seemed hours while she stood within the tree's shade, covertly watching the pair.

Three men seated in the room were covertly watching.

And not just from talking, Chris acknowledged, covertly watching her.

Once investigators covertly watched a dead drop for three days only to find out that the hole in the wall went all the way through.

I began to be interested, too, watching covertly as she turned pages at random.

People covertly watch one another, mentally ticking off a list of who is willing to be seen with whom.

He watched covertly a good section of the station behind him.

Other priests and priestesses watched covertly as they went about their business.

Mark and his companion pretended to make small talk, watching covertly for anyone approaching them, but no one did.