His thin mouth was more severe and grim than usual.

The Sam's thin mouth twitched slightly as he moved into the room.

He has short gray hair, dark eyes, a long nose, and a thin mouth whose corners turn down a little.

For a moment, the Captain's thin mouth curved with a smile.

The thin, hard mouth and jaw suggested this was a man used to getting what he wanted.

Apparently she passed, for his thin mouth widened to a smile.

She half opened her tight, thin mouth and held it on the verge of speaking.

She had a long face, a thin, firm mouth, and high cheek bones.

Her long face tightened, lines of anger forming around the too thin mouth.

She had olive skin, deep, green eyes, and a thin, severe mouth.