Every time Raoll looked at it, when he caught it, his smile would tighten.

The commander's smile tightened slightly, but aside from that he showed no annoyance.

A small flurry of noisy activity drew his attention, and his smile tightened again.

His smile tightened, and he gave a small nod.

But his smile tightened as he inserted his key in the door and entered.

A slight smile tightened the corner of the general's mouth.

That smile tightened for an instant before blooming once more; Rand would have a hard time with her.

As she read the data on the luggage, a grim smile tightened her lips.

He gazed back at the mountain, dwindling on the horizon, and his smile tightened to a grim line.

The sugary smile tightened as she watched the girl's reactions.