If you like the look of strong hands, start beveling glass.
Resisting the pressure of rotating iron, stone, cork, and felt as one grinds and polishes, is like Gold’s Gym for your hands.
Many years ago I stopped off at a plumbing supply store to purchase some solder. Discovering I didn’t have my checkbook, the owner smiled and said, “take the solder and mail me a check. I know you’ll pay me, I can tell by your hands.”
As a kid, my mother would tell me I had fingernails like a girl. But that’s another story.