In one sentence, describe what the following article is about:

Body language is the way we communicate to people without words. Use kind, open, warm and inviting body language. There is nothing people hate more than a rude, snotty, "thinks she's above the world" kind of girl. When you sit, plant your feet firmly on the ground and place your hands on your lap. Avoid crossing your arms or sitting sloppily, lazily, or not being involved. It makes people think you can't be bothered to talk to them, and that's the last thing you want. When people are talking to you, make eye contact with them. It lets them know that you are paying attention and listening to them. Try to break eye contact occasionally, or else it's creepy. Teachers appreciate it when students pay attention during their lesson. It lets them know they are doing their job. Also, if they ask questions, raise your hands. But only if you know the answer because they call on you, you could wind up super embarrassed. Don't care what people think about you. Just have fun! Just remember, you have friends who like you for who you are, so who cares what those snobs think about you! Don't look down on people who are different then you are. They are just expressing themselves just like you are. Also, don't pick fights with "popular" people for making fun of you. If you get into a fight with them, you are just as bad as they are. The best thing to do would be to just walk away. Be the bigger person. Don't be afraid to be bold. If someone dares you to do something, as long as it's safe, do it! Try bungee jumping, rock climbing, skydiving or scuba diving. Do your homework and be safe. However, don`t be a nag. If you see someone doing something wrong, quietly walk of and tell someone in authority Don`t go up to them and tell them off. It is more fun to be behaved than not, don't get into trouble.

Summary:
Use body language. Make eye contact. Pay attention in class. Be carefree. Be nice. Be a risk taker. Be responsible. Be well behaved.