having nimble fingers that are light and skillful in movement;
e.g. Being light-fingered is a great asset when it comes to playing the piano.
(adjective)
tending to steal things, typically by shoplifting or pick-pocketing, or showing skill and cleverness at stealing, i.e. having a figuratively light touch;
e.g. My wallet was stolen by a light-fingered individual, most likely when I was riding the bus.