She tried to make her voice light, but it was difficult.

He kept his voice light, as if the words were quite casual.

She tried to keep her voice light, but it wasn't very convincing.

"I thought love had something to do with passion," Jack said, trying to keep his voice light.

A serious chill went through Lewis then, and he tried to keep his voice light.

She tried to make her voice light, without much success.

She made her voice light, but the steel was beneath it.

She kept her voice light, as though nothing was wrong.

"You have to keep your voice light to present that quality," he explained.

"I thought you'd never get here," she said, trying to make her voice light.