Blenkinsop, very anxious and wretched, but trying to look unconcerned, comes back.

I watch his careful movements, the effort he makes to look unconcerned, relaxed.

Fred tried to look unconcerned; he fished mentally for something smart to say.

The novice squared his shoulders and made a gallant attempt to look unconcerned.

She stopped, blushing hotly, and tried in vain to look unconcerned.

Bert Dodge had sat through this testimony trying to look unconcerned.

By twos and threes they slouched away, trying to look unconcerned.

Her face was flushed, yet she was trying to look unconcerned.

There was a roar of laughter, during which Sam tried to look unconcerned.

Malcolm tried to look unconcerned under Malinkoff's swift scrutiny and failed.

Lieutenant Jackson, of the Navy, tried to look unconcerned, but he couldn't, wholly.

Tate stood his ground, chin held high, trying to look unconcerned and failing miserably.

She met his gaze only briefly, tried to look unconcerned.

I tried to look unconcerned, but doubt if I succeeded.

Jane was so agitated that she sat silent and rigid, trying to look unconcerned.

Henry refuses to understand, doing his best to look unconcerned.