verb
trifle with, putter, fiddle with, dip into, engage in superficially, amuse oneself with, dally, flirt with, toy with, be an amateur, have a dilettante's interest, idle away time, make slight efforts, do something in a light manner, scratch the surface, have sport with, tinker, putter around, diddle*, fool with*, fool around*.
Antonyms delve into, work at, become an expert.
