agitate, bob, bobble, bounce, bump, didder, dither, falter, fidget, flick, flip, flirt, flounce, grimace, have the fidgets, hitch, itch, jar, jerk, jig, jigger, jigget, jog, joggle, jolt, jostle, pluck, quake, quaver, quiver, rictus, shake, shiver, shock, shudder, snake, snatch, start, sudden pull, tic, tremble, tremor, tweak, twitch, twitter, vellicate, wiggle, wobble, wrench, wriggle, yank, yerk