As she spoke, Geta lifted the curtain, and Philothea instantly obeyed the signal.
Each instinctively touched the other's arm, as a signal for silence.
For months I had received daily and hourly the most signal benefits from his hands.
The appearance of Mr. Gladstone was the signal for great applause.
Cissy sent her a look, a signal, and rose; she stood by the doorway.