The locations of marks and wear depend greatly on the profession, of course, though my accuracy is quite unmatched. {Mostly unmatched, anyway.} This ability has been diminished of late, regrettably, with this dearth of unfortunately unfamiliar occupations. I have however identified indicative marks on the hands of those who would spend undue amounts of time with the more leisurely technologies.

{Technologies, of course, said as though it is the highest form of treason and blasphemy.}