Answer:

wagged

Answer	Crossword Clue
WAGGED	Showed some puppy love?
WAGGED	Moved one's tail in joy or one's finger in disappointment
WAGGED	Swung to and fro.

WAGGED	Oscillated.
WAGGED	Went back and forth
WAGGED	Emulated a dog's tail
WAGGED	Emulated an excited dog's tail
WAGGED	Went to and fro