Grimacing

What's the matter, dad? Why are you grimacing like that?

Friends, don't be constantly in fear of the unthinkingly critical, grimacing conventional world, but always act as your conscience and heart dictate.

Yanni was grimacing.

Tom leant in to kiss Mary, but she drew back, grimacing.

Tom is grimacing.

The next morning Oswald stopped short in the middle of his shaving, which in his case involved the most tortuous deflections and grimacings.