They observed silently as the two of us men discussed whether women want to wear burkas.
She had been silently observing the milestones of time's passage since "that day."
Over time, he has withdrawn from the world and into himself, silently observing others rather than interacting with them.
But when he looked back at the Doctor, who had followed close behind and was silently observing, the words died from his lips.
He had been silently observing the entire exchange, but now he stepped forward.
Betrayal, she observed silently, was in the eye of the beholder.
We silently observed him as he sat, still looking at the fire.
LuAnn stood with her back to the window and silently observed them.
They have no one now to report to, however, and can merely silently observe.
They are to sit behind the participants and are to silently observe the proceedings.