She rose, a little taut smile on her lips.
There was a taut smile on his pale lips.
There was a taut smile on his worried face.
Rhys Michael managed a taut smile and gave him a nod.
He paused at the door and turned back with a taut smile.
"I don't know what is up with the dressing," she said, her ever-present smile suddenly taut.
He reacted to that observation with a taut smile.
Eventually Key acknowledged the macabre humor of the moment with a taut smile.
His intense concentration took the form of a very gleeful, but rather taut smile.
Then a taut smile replaced it, and there was pride in his slow nod.