This is important to project a positive self-image. Taking a shower every day or two is a must. Even if you do not sweat a whole lot, it is important to good hygiene. Brush your teeth twice a day, and floss once a day. People do not take this seriously enough and soon come to regret it. If your teeth are a bit crooked, you should consider orthodontics, if you can afford it and feel it will make you feel more confident. A straight smile can make a big difference. Wear deodorant every day. Body odor is not an attractive smell, and nobody around you enjoys it. It is a simple routine that can benefit your friendships and relationships. Most deodorant is not so fragrant that it would be considered "too much". Apply liberally. Make sure you get antiperspirant deodorant every time, as it will save you shirts in the long run.  Cultivating a scruffy look can be very successful, up until the time you reach middle age. This does not count those dirty looking mustaches you see from time to time. If you have one, shave it off. Pluck your uni-brow or shave it. Either way, create two brows. No exceptions. Wash your face every day. This helps to clear up both red acne and blackheads. Remember, if you are a teenager a little acne is totally normal. If you are having trouble with blackheads, any skincare product with "Salicylic Acid" in it is a good choice. If you are having trouble with red acne, grab a tube of Benzoyl Peroxide 8-10%. Both of these products are quite cheap and last for weeks. They are the similar ingredients to some of the name brand products, which are typically much more expensive. Using cologne to your advantage is a smart move, but do not overdo it. Wear nice clothes. The style of clothes that you wear does not matter, as it expresses your personality. Your clothes should be clean and ironed (if appropriate). Also, do not wear pants in such a manner that reveal your underwear. This is not sexy. If you are going to wear jeans, make sure they are not too baggy. This, too, does not look good. This means that...

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Write a summary of the previous text in Chinese:
要注重个人卫生。 让自己看起来沉稳老练一些。