From Cybersphere Wiki
Shar was cleaning her Sig Sauer P-10 pistol. She had long, steady fingers, she double-tapped a Crosspatcher from across the Docks in Nirvana the afternoon I met her. We waited through the rain for Sirus to get back with take-out from Jin's Noodles while she cleaned. I was finishing the fender on our NeoHonda Naga 450. I'd made short work of the bike. Shar said I had the hands for it.
How good your character is with his/her hands. If your character needs intricate and precise hand movements for something (like stealing or firing a gun accurately), (s)he should have a high dexterity.