A two-strand twist set is a healthy style choice for your hair. Compared to a braid-out, it is easier to do, dries more quickly and is more gentle on the hair. Unfortunately, the twists can come undone during rigorous activities or if you are a rough sleeper, so the braid-out may be a better choice for some. To do, first wash and condition your hair. Second, part your hair into sections (eight sections--four in the front and four in the back-- will usually suffice, but you may want more depending on your preference--the smaller the twist, the tighter the wave pattern will be). Third, gently comb each section, separate it into two parts or strands and then twist. If your hair is prone to frizz, you may want to add a small amount of styling gel to each section before twisting. Remember not to twist your hair too tightly--you do not want to have any tension near the scalp. For the safest and healthiest option, let your hair air-dry (time will vary depending on texture, but thick hair usually takes at least 8 hours). If you don't have time to let your hair air-dry, you can use a blow-dryer with a diffuser or a hood dryer (time will vary depending on texture, but thick hair can take about 45 to 60 minutes). After your hair is completely dry, untwist each section. A two-strand twist set is a great way to add waves to straight hair or stretch and lengthen curly hair without using a heated styling tool, such as a curling iron or crimper. Results will vary depending on texture, but you should have some luscious waves to work with--the possibilities are endless.