There's a lot of ways!! When your hairs damp split your hair into a half. Then take half of you hair and start to twist tightly until you twist all of your hair. Then put a hair tie at the end of your hair to secure it. And do the same with the other half of your hair. Then wait for it to dry, if your in a hurry you can blow dry it but I prefer to sleep in them and take them out in the morning. When you take your hair out(in the morning) you want to untwist your hair carefully and if your hairs still a little wet then let it air dry. Once it's dry take some hair spray of you want an spray your hair very lightly. if you want to know more ways just comment on my post!
You can us rag pieces instead of a sock. You have your hair damp and then take small to medium sections of hair and just rap your hair around it roll it up to your scalp and then tie it off. You can try youtubing rag curls.
Take a shower, braid your hair while damp, let it dry overnight, blow dry any leftover dampness, untie it, and do NOT brush it(that will make it wavy) this works really well for me. Hope this helped : )