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Make sure that you have a neat, clean appearance. A pair of black slacks and a black shirt will look the most formal. Consider getting your nails done, and go easy on the makeup. Be sure that your hair is done as well. You are, after all, applying for a job that deals with making hair look great. Potential clients will have troubles trusting your abilities if they see that you have messy, unkempt, or damaged hair. They may assume that you do not know how to take care of hair and may hesitate entrusting their precious locks to your hands. You do not need to style it extensively every single day—just make sure that it looks clean and healthy. This is a great way to get experience and will help prevent you from falling into the "you need experience to get a job, but you need a job to get experience" spiral. The internship may even lead to a job offer, depending on your performance, how much they like working with you, and whether or not you have finished your education. The hair salon can only do so much when it comes to getting clients for you. Even if someone does walk into the salon, he or she may not pick you as their stylist. By using social media, however, you can tell more people about yourself and your work, and thus get more clients that way. Here are some ideas:  Consider creating a Facebook, Twitter, Tumblr, or Pintrest account. Use these to post photos of your work, and mention any specials you might have going. Create a website or blog, and use it to tell people about yourself and your work. You can post your work address and prices, along with some photos of your hair cuts. Encourage satisfied clients to visit your sites and post feedback.
Dress appropriately for interviews. Take good care of your hair. Consider applying for an internship. Use social media to get more clients.