Steps

1. Change is Good. But remember who you are in the making of this change.Get used to the idea that you are dynamic and constantly changing. People say "don't change and just be yourself" and this is nonsense because by being what you have always been you will get the results that you have always gotten. If you want to be popular, its good to look like you fit in and to be outgoing. Take it one step at a time, and build your confidence. Popular people are social,
2. Don't Be Stupid and empathetic. They know when someone needs a friend, a compliment, a hug, and exactly how the other person is feeling. They start casual conversations. Its ok to be shy and have nerdy tendencies, but if you want to be popular, you have to smile, start conversations, and relate to people at their own level. That means talk about what the other person is interested in. Don't get used to the idea that you are shy or whatever, get used to the idea that you are constantly changing, and that you are developing your social skills to the point where you could relate to all people.
3. Be confident. Stop thinking you are ugly or that you aren't cool enough. Everyone is either beautiful on the inside, outside, or both. Be comfortable with that! Think of your qualities for a while. You're cool through them. Just believe in yourself and let people meet you. If you don't feel it, fake it. Think that you are cool and pretty, because once you start believing it, others do, too, but don't be conceited. Also, to be confident wake up every morning and tell yourself how pretty you are. It may sound conceited but it is a great way to start the day. Nobody will believe your beautiful if u don't.
4. Take care of your body. This doesn’t mean you have to starve yourself. Rather, try to get into shape. Eating healthy and exercising is important and effective; so is staying clean with good hygiene.Drinking plenty of water can help your skin look great and improve your overall health. If you get to the point where you feel good about your body and the great shape you keep it in, others will see that.
5. Get your own clothes sense lined out. It’s no secret that style can get you far in the girl world. You can shop at the popular stores and if you can afford it, try to buy designer clothes and accessories (don't buy cheap knockoffs and try to pass them off as real). However, you can be very fashionable by creating outfits from stores such as Abercrombie, Hollister, American Eagle, Garage, Lululemon, H&M and Aeropostale. Forever 21 has some nice selections as well. Check out fashion magazines, and study how outfits are made, and how they turn fashionable and gorgeous.It’s also great todevelop your own style, adding individual touches that are really you, instead of copying everybody else. Be unique. Accessories like earrings, belts, bags, etc. can do wonders.(You can get some really unique pieces from H&M and Claire's.)
6. Take your hair for a ride. While not essential, a change to your hair could be just the wake-up call you need to feel confident and get out there as a popular girl. As with everything else, make sure your hair is well-groomed and taken care of as often as possible. Shower every day, wash your hair at least 3-4 times a week, and condition (from the middle of the hair down). Also, spend extra time on your hair in the morning. Nobody wants a hat day!
7. Apply makeup carefully if you like putting on makeup. You don't really need makeup but putting it on could make a big boost in your confidence. While most popular girls wear makeup, it’s important to be tasteful about it. You really want people to think you're not wearing any makeup at all. Makeup can help you to emphasize things you like about your appearance, and draw attention away from things you don’t. Be sure to blend your makeup so it will not stand out and that way it will look natural. Concealer, mascara, lip gloss, and maybe some eyeshadow or liner(not both, though!) are all you need. If possible, carry these things around with you in a cute bag for touch-ups. However powder and mascara don't need to be touched up because you can carry blotter paper with you to take care of oil. You should always remember that there are quite a few of popular girls who wear no makeup, and are still gorgeous.
8. Be outgoing. Being shy won’t win you any new friends. You’re going to have to get out there and talk to people. You cannot be afraid to talk to others. Whether it’s chatting up to popular girls in class or at lunch, getting yourself invited to the hottest parties, or winning an athletic contest, make your name known. Everybody needs to know who you are. Like people and show it. Be friendly and interested in people, and many of them will like you back. You don't win popularity by hiding in the corner or expecting people to approach you and suddenly appreciate you for the true gem you are. If you're shy, make friends with really outgoing people. They will encourage you to talk to other people, and soon it will be easy for you. Make sure to talk about things that other people are interested in. People are really passionate about talking about their interests.(Be yourself)
9. Get involved. Popular girls are usually well-rounded, and comfortable in almost every sphere of the school. Join a sports team or club. This will help you to meet many new people and establish you in the school. Be sure to do something you actually like, as people can tell when you’re faking. No one likes someone who does a sport or club just to be popular. Let people know the real you!
10. Don't try to hard. Don't think, that if you do a certain thing, they will like you. You must try there ideas, and there tips. Make a list of tasks for you to do. People will always remember you from what you are now. If you truly want to get rid of that rep, work to do it. Set a goal, that if you achieve you know people will notice. Work for that goal.
11. Know what your body language is telling people. For instance, when you cross your arms your body language can give the impression, "Don't bug me." Another example is slouching - a sign that says, "I don't feel I'm very important." Positive body language is all about how you feel about yourself and how you make others feel. The most popular people in school or at a party usually know how to make everyone else feel good by using plenty of positives gestures like nods, eye contact and, most important of all, a sparkling, warm smile. People think u aren't happy without a smile.
12. Seek opportunities to socialize. Even if it's just walking from one class to another, find someone that has the same schedule as you do so that you can walk and talk. If you really feel like doing something will benefit you, ask a friend to do it with you.
13. Develop relationships. As you begin to meet people, don’t just treat them as items on a checklist. Find out what they like to do, their interests, and learn about them as people. You’re trying to make friends, not just be known. Also, be sure to keep in touch with your old friends—you don’t want them to think you’ve forgotten about them just because you’re making new ones. Don’t exclude anyone.
14. Study hard if you're into having good grades. Being popular doesn’t mean being stupid. Participate in class, do your homework, and don’t be afraid to be known as a smart girl. Just be sure you leave plenty of time for social activities. Let people know that academics are important to you, but are not your whole life. Show them you know how to be social.
15. Don’t believe the hype. You don’t have to be mean to be popular. You can be friends with whomever you want. That’s what being popular is. Stay true to the things that are most important to you, and the rest will come with ease.
16. Stick to your values and morals. That is what matters most. You may be a 15 minute celebrity, but it is better when you are respected for who you are. Keep it clean, get good grades, and help others, and then you will shine for the true you and not a shallow type. Be a great leader and many people will follow.
17. Don't dump your old friends for the popular crowd. In one way or another it will always hurt you. You can spend more time with your new popular friends, but try to make time for old friends too because they really are your true friends who like you for who you are. If your old friends start becoming mean then you can stop hanging around them.
18. Admit that you have flaws, once you do that try to fix those. Hey nobody's perfect!
19. Be Nice. If you're nice more and more people will like you and don't act like your better than anyone.
20. Have self respect. People respect others if they respect themselves.Be cool always.
21. Sometimes, playing dumb helps. Let's face it, being popular will definitely make you lots of new friends, but it will also probably lead to a few jealous stares. If a so-called "friend" makes a nasty comment, laugh it off and pretend that it wasn't hurtful at all. Act like you didn't understand the real meaning behind the comment. Above all, never cry or get upset. By doing this, your giving this girl the satisfaction of bring you down a notch. It's okay to stop hanging around this girl, but don't make it obvious. Always be polite and courteous. You don't want to be viewed as the bad person.