alert, brisk, lively, merry, rattling, snappy, spanking, zippy -- (quick and energetic; "a brisk walk in the park"; "a lively gait"; "a merry chase"; "traveling at a rattling rate"; "a snappy pace"; "a spanking breeze")
bouncing, bouncy, peppy, spirited, zippy -- (marked by lively action; "a bouncing gait"; "bouncy tunes"; "the peppy and interesting talk"; "a spirited dance")