grimace

A contorted facial expression, often expressing contempt or pain.

Her face was twisted in a grimace of disgust.

I trundle off to bed, eyes brimming, face twisted into a grateful glistening grimace, and awaken the next day wondering what all the fuss was about.

Affectation, pretence.

Zeluco considered all this as mere affectation and grimace, and was convinced that she would, in due time, unfold the particular mode in which she wished to be indemnified […].

Charlotte was equally insensible to all his fashionable grimace, and indifferent to his conversation.

To make grimaces; to distort one's face; to make faces.