He smiled, just a twist of his thin lips.

Judging by the twist of her lips, Rigby thought she knew the answer.

He may do himself in,' Zulaya said with a grim twist of her lips.

Oh, there had been a supercilious twist of his lips, but not actually a smile.

The twist of his lips was barely a smile.

A twist of her lips showed that she had marked it.

He gave an irritated little twist of his lips.

He grinned, an old familiar twist of his lips.

"I think I'll stay," she said with a crooked twist of her lips.

The old man smiled anew, a brief twist of his thin lips.