He saw the corner of Riley's mouth turn up in a smile.

One corner of his mouth turned up, but you couldn't call it a smile.

The corners of her lips turned up as she watched them.

The corners of his mouth turned up a little more.

They took him away before he got the corners turned up.

The corners of her mouth turned up in a slight smile.

The corners of her lips turned up in a small smile.

Jamie was still pale, but One corner of his mouth turned up.

The corner of his mouth turned up, but without humor.

When he didn't, one corner of her mouth turned up.