easy :3 ok heres what you do, First off you need curlers (you can buy these at any old dollar store) and hairspray,
1. separate the pieces you want to be curled (either put them in hair ties/elastics or u could use clips)
2. Take your hair curlers and place them on the pieces you want curld
3.once the hair is in the curlers take your hairspray and spray a geherous amount.
4. leave over night or a few hours
5. take out the curlers and then ur alll good
lemme know if this helps