Alcohol, caffeine, cigarettes, and drugs are especially bad for your appearance and health.

Don’t use deodorant or perfume as a substitute for bathing. People can tell. Use as little perfume as possible, and only use it on pulse points like your wrists and neck. Your perfume should be a subtle fragrance that people only notice when they’re next to you, not a strong smell that hangs in the air around you.

It’s okay if your teeth are crooked or if you wear braces. Just make sure they’re clean and white.

Read the instructions on your clothing labels. Some clothes can’t be ironed or can only be ironed on a low setting. If you don’t want to iron, try hanging clothes up immediately after you dry them, or letting them run in a dryer on the permanent press cycle.

If you can’t afford a professional makeover, ask a friend or relative who’s into makeup and beauty to help you. Don’t feel intimidated about going into a makeup shop or hair salon. They’ve seen everything and they’re here to help you.

Try saying something like “My eye color is beautiful” or “I did a great job putting together this outfit today” or “I did great on that algebra test. ”

If you usually wear dark or neutral-colored clothes, try wearing a bright blue top one day. Join a new club at school. Order something different at your favorite restaurant.

It’s totally normal to hate some of your selfies! Even supermodels have outtakes they don’t want anyone to see.

Many people interpret smiling and making eye contact as an invitation to chat. If you’re in a hurry or don’t want to talk, be sure to make the eye contact last for only a second.

This doesn’t mean that you should let people treat you badly–if you have to tell someone to stop or to leave you alone, do so clearly and firmly.

Tell your parents that you appreciate all they do for you. Text your best friend a note saying she’s awesome and the best friend ever.

Don’t go overboard. You shouldn’t offer to help do something if you aren’t fully up to the job. Offering to help too often can lead to burnout and being taken advantage of.

You don’t have to walk up to people and announce “You’re pretty. ” Try saying something like “I like your haircut” or “You look nice today. ”