She coughed lightly to gain attention, but nobody acknowledged.

A man coughed lightly and turned to escape the gas.

Bev coughed lightly, clearing out some of the smoke.

He coughed lightly, sat upright and stared at Gro through the dim light.

Lieutenant Vale coughed lightly, gave a small snort, and turned to her right.

Long minutes passed in silence after that, until the newcomer put his fist before his face and coughed lightly.

A man behind in the car coughed lightly.

He coughed lightly and his face twitched with pain.

Then he coughed lightly to clear his throat.

He coughed lightly, to clear his throat and punctuate the thought.