First, read the English article below.

Make sure you're projecting confidence to other people. You can’t be confident unless you think you look good in public. Because of this, you need to work on how you look to others, then, hopefully, you’ll start to feel better about yourself and be less shy. Consider trying these changes:  Overhaul your wardrobe. Get rid of any ratty clothes or clothes that are inappropriate for your age level and for the types of places you hang out. Make sure you are well-groomed. If you’ve got facial hair, tend to it. If you don’t, make sure to shave every day. Also, make sure to keep your hair looking clean toward the back of your neck and around your sideburns. Get in shape. If you’re shy or self-conscious because you’re not in shape, put some time into fixing that. Run a couple times a week or go to the gym. In little time, you’ll start to feel better physically, and you’ll probably have more self-confidence, too. Bad posture gives the impression of low confidence. Stand up tall, look ahead, hands down to the side, put on a smile if you want to. Invest some time in observing how other people hold themselves in terms of posture and body language – especially people you admire or think are attractive and well-put together.  Avoid hunching over. Avoid fidgeting with your hands or keeping your hands in your pockets. Pay attention to how you sway your arms when you walk. Don’t cross your arms or take other defensive postures when you talk to people. If you come off as uncouth, a slob, or rude, you’ll surely alienate any girls you are interested in. Instead, learn how to be polite and act like a gentleman. This will not only help you exude the confidence, but it will make any girl you’re interested in feel special as well. Furthermore, if a girl sees you treating other women politely and gentlemanly, that will signal the kind of guy you are, and she might want to be with you.  Hold the door open, if appropriate. Listen to her, and don't cut her off as she's talking. Treat people people who are serving you kindly. Let her... 

Now, please write a short abstract for it in Vietnamese. Abstract:
Thay đổi diện mạo. Lựa chọn tư thế và ngôn ngữ cơ thể. Lịch sự và cư xử như một quý ông. Xây dựng khiếu hài hước nếu bạn không phải là người hay đùa giỡn. Đi chơi với những người bạn nữ.