The Oxford Thesaurus An A-Z Dictionary of Synonyms - playful adj.

1) (high-) spirited, cheerful, frisky, frolicsome, kittenish, sprightly, fun-loving, sportive, coltish, mischievous, puckish, impish, elfish, devilish: The cat didn't mean to scratch you, she was just being playful. 2) joking, facetious, teasing, roguish, waggish, jesting, humorous, tongue-in-cheek: Cleo's in a playful mood today, isn't she?