I've watched a lot of billiards, both the three-cushion sort and the "smaller games" in which you have to control the movement of the balls in a very small space. I've noticed over the years that a great many younger European players wear a metal bracelet (jewelry) on their right (stroking) wrist. I've often wondered whether it wasn't a way of giving themselves a better sense of where their cue arm was and what it was doing.
Maybe it's just European style among young men.
Maybe it's just European style among young men.