How to make your hair wavy?

( 4 black girls only) how to make ur hair wavy is u get a water sprayer and some grease fill the water sprayer with water and spray the water on ur hair then u put a lot of grease on ur hair till it feels a little hard then braid ur hair into 2 big braids or more ( depends how much hair) sleepover night with it in then take it out in the mornintg it should now be wavy