Sit on one's heels.

synonyms: crouch, hunker, hunker down, scrunch, squat.

Make wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in; `crisp' is archaic.

synonyms: crease, crinkle, crisp, ruckle, scrunch, wrinkle.

Dutch: fronsen, kreukelen, kreuken, plooien, rimpelen, verkreukelen, verkreuken