how do i get my hair wavy?

Plait your hair before bed and sleep with it in, take it out in the morning... Ta-dah! :D

get on youtube! here are hips of tutorial that may help:)
http://www.youtube.com/results?search_query=wavy+hair&oq=wavy+hair&gs_l=youtube.3..0l10.141.921.0.996.7.3.0.3.3.0.80.198.3.3.0...0.0.vhtSg2QK4pc
btw, don't sleep with your head wet. if you do it everynight you're gonna have a real serious headache when you're older.
hope i can help! cheers:)

Shampoo and condition your hair. Use a lightweight conditioner that won't weigh it down; try a volumizing formula.

Blow dry the roots of your hair with your head upside down, using the cool-shot button every few minutes to lock in some volume. Stop when your hair is damp, but not yet fully dry.

Spray some salt spray (also called sea spray, surf spray or beach spray) into your palms.

Run your palms over your hair, starting at the ends. Try not to get any directly on your roots.

Divide your hair into 7 to 8 sections (more if your hair is very thick).

Starting at the top of your head, twist each section into a loose bun and secure the ends with a bobby pin.

Repeat with the remaining sections of hair.

Allow your hair to finish drying while twisted up in the buns for 15 to 20 minutes.

Take out the bobby pins and finger-comb the waves into place, scrunching from the ends up.

Use a curling iron to fix pieces that didn't take shape well or give the front sections a more defined wave. To get a relaxed wave rather than a tight curl, don't open the clip on the curling iron. Just twist a piece of hair and manually wrap it around the barrel, holding the ends in place.

Use a weightless shampoo and "for curly hair" conditioner. Get out of the shower and vigorously towel dry the hair. Do not brush it unless you really need to. If you do, towel dry it again. Leave it down, do not ponytail or blow dry or put chemicals in it. After a few days, you develop wavy and slightly curled hair

One thing you could do is shampoo your hair, then put your hair in sea salt water. That will give your hair natural waves. Or get a one inch or bigger curling iron and curl your hair..