It twitched once or twice, then lay still.

Frank remained vacant-eyed and detached, but a muscle in his left cheek twitched twice.

It's the narrowest possible view: does it twitch once or twice?

He slumped to the ground, twitching once or twice before lying still.

She twitched once or twice and started to speak.

His body twitched once or twice, but he was already dead.

His limbs twitched once or twice, and he was dead.

His body twitched once or twice, then he lay motionless on the sand.

Gaspode's apology for a tail twitched once or twice.

The long fingers twitched once or twice, but the hand made no move toward the pull.