What are some good long hair styles?

My sister has black long hair shes around 148cm tall and has hair down to her waist she was wondering what are some good hair styles to where at school that doesn't look to messy.What are some good long hair styles?
i would say if she no's how to braid lean her head sideways so that her hair is all hanging over one side of her head (over her shoulder) then start braiding sideways as close to the neck as possible then she will just have a neat braid/plat hanging over her shoulder:) sorry it is hard to explain i hope i have helped!What are some good long hair styles?
She needs a huge 70's style afro

make up