You’ll need..

• Rubber bands
• Leave-on Conditioner*
• Hairspray
• Volumizing Mousse

What I did was:
1. I washed my hair before going to bed, then let it air dry for a bit, you can use a hair dryer to consume time. Not totally dry, just damp. 
2. Tossed my hair back, then applied a leave on conditioner* or volumizing mousse, and lots of hair spray.3. Then do the French braid :) Sleep on it and then when you woke up, remove the bands, toss your hair back and then use lots of hair spray (again) and mousse. 
This video might also help you, but I have to say it’s kinda hard to French braid the hair without any assistance. The output of what I did to my hair is kinda way different from the girl on this video because it’s puffier and it has tinier curls. You can search wavy hair tutorials from YouTube. http://www.youtube.com/watch?v=HEEu1DJotqo&feature=related