dabble
1. [ verb ] dip a foot or hand briefly into a liquid
Related terms: dunk
2. [ verb ] play in or as if in water, as of small children
Synonyms: splash_around paddle
Related terms: play
3. [ verb ] (work) work with in a non-serious manner
Synonyms: dabble_in play_at dabble_with dabble_at dip_into play_around smatter
Examples:

"She dabbles in astronomy" "He plays around with investments but he never makes any money"

Related terms: busy dabbler
Similar spelling:   dapple
  dibble