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No matter which type of braid you decide to use for this hairstyle, you can choose to make your braid either very tight or a little looser. If you want your finished hairstyle to look very polished, try to make your braids tight, but if you want it to be a little messier and more casual, make them looser. You can always loosen you braids up a little later on, but you can't make them tighter without redoing them. You can use any kind of braid you want with this hairstyle, but a classic three-strand braid is the most popular. This is also one of the easiest braids to create.  Start your classic braid by dividing the piece of hair that you want to braid into three equal sections. Use your fingers to keep these sections separated as you work.  Cross the left-most section of hair over the center section so that it is now between the two other sections. Then cross the rightmost section over the center section. Each time you cross a section over, it will become the center section. Continue following this pattern until you reach the bottom of the braid. Then use an elastic hair tie to secure the braid in place and move on to your next braid. For an interesting twist to this look, you can braid each section of your hair into fishtail braids instead of classic three-strand braids. These braids may look complicated, but they're really quite easy.  To start your fishtail braid, divide the portion of hair that you want to braid into two halves. Use one of your index fingers to keep the two halves divided. Next begin braiding by taking a very small section from the outside of one half and crossing it over to join the other half. Alternate back and forth, taking a small section from the outside of each half, until you reach the bottom of your braid. Secure the end with a small elastic hair tie to keep the braid in place, and then move on to your second braid. Another simple way to change up the look of this style is to use a rope braid. This is a simple braid that actually involves more twisting than braiding.  Get started by diving the section of hair that you want to braid into two equal halves. Hold each half in one hand. Next start twisting both of the strands individually. This will be easier to do if you are holding each section at the very bottom. Once each piece is twisted, started twisting them around each other by wrapping one section on top of the other, then underneath and around. Continue doing this until you reach the end of the hair, and then secure with an elastic band. When you're done, move on to your second braid.
Decide how tight you want your braid to be. Use a classic braid. Consider a  fishtail braid. Try a  rope braid.