wince, hesitate, faze, bother, cringe, waver, squirm, relish, cower, daunt, startle, budge, recoil, sneer, scream, shirk, shied, flustered, wilt, smirks, stare, blink, demur, shriek, relent, blanch, resist, laugh, concede, chuckle, face, bristle, dare, yelped, yell, rattle, tremble, chortle, countenance, growled, sugarcoat, averse, barked, react, forget, know, hyperventilate, disappoint, groan, twitch, scold, salivate, grinning, scowled, grimaced, glower, snicker, crouch, flail, ducking, squeal, unfazed, falter, flummoxed, scoff, balk, mutter, lick, scared, worry, intimidated, admit, blush, giggle, condescends, hoot, mention, nonplused, displease, retch, weep, baulk, overreact, irritate, mince, enamor, criticize, shudder, stutter, grumble, glared, equivocate, fret, holler, deterred, deign, tiptoe, stumble, foresee, upbraid, unnerve, chastise, hesitation, quiver, shiver, flicker, qualm, twinge, ripple, stiffening, tightening, tremor, tremors, chill, flick, flutter, frown, conditioned, antidromic, apnoeic, asymmetric, aversive, consensual, defense, dispersion, electrodermal, flight, hyperglycaemic, hyperglycemic, hypothermic, inhibition, latency, localizing, pavlovian, photic, psychogalvanic, stimulation

retract, shrink back

jump, move, start, startle

cringe, funk, quail, recoil, shrink, squinch, wince