twitching

“Something is coming uphill,” said Mother Wolf, twitching one ear.

Marilla turned quickly away to hide her twitching face; but it was no use; she collapsed on the nearest chair and burst into such a hearty and unusual peal of laughter that Matthew, crossing the yard outside, halted in amazement.

“It was your own fault,” said Marilla, twitching down the blind and lighting a lamp.

“One moment—one moment!” cried a querulous voice, and we looked up to find a queer little old man, jerking and twitching in the doorway.