She noticed that Leo had lost his angry expression and was looking interested.

His features were the same, but they had lost their hangdog expression.

For a moment, he seemed to lose his mournful expression.

The man appeared to be talking to himself as he walked, laughing at something, like a child, but his face never lost its tragic expression.

His face had not lost its expression of anxiety and surprise.

The thin man's face suddenly lost its stern expression, and became almost friendly.

His face had lost its expression of being ready to be photographed.

It was then that Joe's face lost its contemptuous expression.

She lost her thoughtful expression and stared across the room at him with a look of fearful intensity.

I started, but his face abruptly lost its expression, and he rose.