How To Keep Your Hair From Looking Greasy: Dry shampoo is your best friend. Also, instead of shampooing every day, rinse with just water and scrub with your fingers to help distribute the natural oils throughout the hair strand.
Which kind of curling iron should I use for my hair? If you are able to work with a Marcel iron, use that for more control over your waves. For beginners, you can use a wand but not the ones that taper out.
Total of three horizontal sections, first section is nape, second section up to the parietal ridge, third section is the top. For each section, take vertical sub sections and curl in alternating directions from each subsection. The more imperfect, the beachier/messier look.