Tie your hair into braids (bigger ones for waves, smaller ones for curls) and sleep on them.

>>15735
This, plus use serums/conditoners/mousses/masks for curly hair and dry your hair with a diffuser on low heat.

>>15713
do nopoo

and scrunch and help them curls by rolling with your fingers when styling in the morning

>>15745
No poo doesn't give you curls if you don't naturally have curls. It's just a (supposedly) healthier way of washing your hair.

>>15736
What's a diffuser?

>>16279
The circular pronged attachment piece that nicer hair dryers come with. It's better to dry wavy/curly hair with. The airflow is dispersed more evenly and the prongs help with keeping the hair shape and volume.

Keep your hair well conditioned and so long as your hair isn't dead straight it will make waves more visible. This seems especially the case with leave in conditioners.

Do you mean naturally as in heat free?

Hair must be damp
Cover hair in moose
plait your whole hair
Wear silk bonnet if can
Leave overnight (no more)
depending on how tight the plaits are the more curly (Or how many plaits) you could easily make your hair coily.