3 collocations for unclenching

He stood clenching and unclenching his hands, his face an ashen gray in his deep humiliation.

" The other looked up with a singular smile, clenching and unclenching his fingers as if he strove to relax muscles which had been tense for hours.

If Seth knowed" She clenched and unclenched her fist, and went on rapidly.

3 collocations for  unclenching