twitches
twitch-es
verb
Makes a sudden, brief, involuntary or nervous movement, often of a body part.
"His eye twitches when he's stressed."
noun
Sudden, brief, involuntary muscular contractions or nervous movements.
"She noticed small twitches in her leg."
Thesaurus
Synonyms: jerk, twitching, vellication, flip, tweet, squeeze, nip, twinge, pinch