Holmes thought for a little, and then a curious smile played over his face.

A curious smile played round his lips for a minute.

He narrowed his eyes with the specter of a curious smile.

There was a curious satisfied smile on the little man's face.

The black youth was looking down at him with a curious little smile.

Then he seemed to reach a conclusion and nodded with a curious little smile.

He gave a curious little smile as she looked pensive.

I glanced at my mother and saw a curious smile on her lips.

Then he suddenly got a curious smile on his face.

A curious smile touched her lips, and she also rose.