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.