The many painted faces, grimacing, sign-like, broadly applied seem to open a mimetic space-within-the-space.
en.wikipedia.org Here the patients are variously staring, sitting, posturing, wrestling, grimacing or disciplining themselves.
en.wikipedia.org He looks cramped and awkward, the body language suggesting some inner turmoil, while the facial expression is a grimace.
en.wikipedia.org Other involuntary movements may also occur, such as tremors, chorea, blepharospasms, and grimacing.
en.wikipedia.org