Xiao Weiguo picked up a piece of chalk from the side, rubbed it onto the tip of the cue while walking over to the billiard table.
For most people who aren't very good at billiards, chalk is utterly useless. Since they can't aim accurately anyway, it's pure luck where the ball goes once hit, so using chalk makes no difference.
However, it is a different story for those with higher skill levels. Chalk increases the friction of the cue tip, helping players better control the force and direction of the shot, which is immensely helpful for precise positional play with the cue ball.
Chapter 127