Summarize:

Spray your hair lightly with water using a spray bottle, or wash your hair and let it dry until it is damp but not dripping.  Do not continue this process with soaking wet hair. Plaited hair takes longer to dry, and the curls will not form if your hair is still wet the next morning. Optionally, you can apply hair oil to keep your hair shiny and healthy.
Dampen your hair slightly.