Get one cup of hot water, if your tap water isnt too good then use distilled water. The water should be hot so the salt disolves easy, but not boiling
Add 2 tbsp of sea salt, you can get this at most grocery stores.I use Morton "fine salt" sea salt. its ground up good so its easy to disolve.
Mix the the sea salt in until its all disolved, then pour into a spray bottle.
Now spray on hair from root to tip and scrunch it a bit. Sea salt does soak up the moisture in your hair, so i sugest using a leave in moisturizer that night. I recomend doing no more than a few times a week, doing it to often will really dry out your hair and make it brittle..
Enjoy your new sexy waves;)