How do you curl your hair with a hair brush?

You can't curl you're hair with a hair brush. Curl you're hair with an iron curler. i have tried to use a hair brush to curl my hair and it doesn't work, but what does work is putting ur hair in the front of your head in 2 braids(one on each side) and in the back put it in a curled bun...which is where u put ur hair in a ponytail and then take it and twist it around the base of the ponytail so it looks like a cinnamon role!!