The guest responded to her tone by a smile, which did not half light up his face.

She was quick to respond to his tone.

Although dogs will not actually understand what you are saying, they will definitely respond to your tone of voice.

But the voice had changed again, responding to his tone.

Almost instinctively, the flight leader responded to his tone.

Ishii responded to his ironic tone with the trace of a smile.

Lamra responded more to his tone than to his words.

"More apt than you know," she said, not responding to his tone all.

Beth responded to his light tone with one of her own.

She felt herself respond not only to his tone but to his speaking her name.