He could not think of any happy reason for her silence.

He held up a hand for silence, then turned toward the door.

I would like to thank you all very much and to ask for a minute's silence.

The Chief raised his hands for silence, and made a serious face.

He raised a hand for silence as both women seemed about to speak at once.

He had to wait and hold up both hands for silence; they did not want to hear him.

One of the young people started to say something, and the woman raised her hand for silence.

But for all its silence, they knew it was there.

Case had learned not to ask questions; they only brought the sign for silence.

But that was not why she raised a hand for silence.