dabble -- (dip a foot or hand briefly into a liquid)
dabble, paddle, splash around -- (play in or as if in water, as of small children)
dabble, smatter, play around -- (work with in an amateurish manner; "She dabbles in astronomy"; "He plays around with investments but he never makes any money")
dabble -- (bob forward and under so as to feed off the bottom of a body of water; "dabbling ducks")
(Sound)
