Something a lot of people can relate to

Last time I played pool I put it on my nose(I have the big pointy Italian nose) and I called myself "Tara the blue nosed human" and my friend smacked me

The chalk helps with controlling the cue ball. Can put english on it, give it back spin etc etc.

I used one of them on my finger and ended up ripping of my nail

"logic"

Indeed

When u hit the white ball, theres a little blue mark on it from the chalk from the cue to let u know u hit the ball.