What is a one-sentence summary of the following article?
If a cyberbully is sending nasty comments to you, going around impersonating you, or just generally trying to upset you online, it can be easy to want to fight back and to tell that person to go away and to start calling that person a few names yourself. But the truth of the matter is, the more you engage with the bully, the more they will think that they're getting to you, and the more likely they'll be to keep bothering you.  You can say something like "Please leave me alone," but other than that, don't talk to the person. You can tell the person, "I'm saving evidence of this conversation" to encourage the person to stop bothering you. Beyond this, though, it's best to avoid talking to the bully at all. Just as in real life, if the bully sees that he or she has the power to make you upset, he or she will be more likely to continue bothering you. Whether you're on Facebook chat, g-chat, or another form of instant messaging, block the bully from your account so you cannot receive any messages from them. You may also appear invisible to the bully, depending on which programs you are using. Once you block the bully from talking to you, he or she is likely to give up on trying to reach out to you. Blocking sends a louder message than engaging with the bully. The bully will see that you're serious about wanting to be left alone. If the bully sends you hurtful chats, posts, or emails, don't delete the evidence. Save it in case you decide to contact your service provider or to talk to an adult or an administrator of your school. Having a written record of the bully's behavior will give you the proof you need to get the bully in trouble. Save it somewhere, print it out, and make sure the evidence is on hand when you need it. If you don't save any evidence, then it'll be your word against the bully's, and the bully is likely to deny having any online contact with you. Even the act of saving and storing the evidence of the bullying will be empowering for you, even if you decide not to use it. If you want to make it less likely that you'll be bullied in the first place, you can also create higher privacy settings, whether you're using your Facebook, Twitter, or another online account. Limiting the access that people have to your photos and the things you post can help you avoid people who are just trolling your profile in order to find something to laugh at or be mean about. That said, you should also be careful about whom you accept as a friend on online networks. If you accept absolutely everyone who wants to be your Facebook friend without knowing very much about that person, then it's more likely that this person will end up making some unpleasant remarks. Of course, it is never your fault if you are being bullied or cyberbullied. Still, you can think about which comments you post, and who is able to view them. If you post something very controversial or likely to offend a lot of people, then you may be opening yourself up to having people bully you about what you're saying. Though most bullying does not happen because of posted comments, if you want to be more safe than sorry, then you should avoid posting anything that is likely to anger a lot of people. If a person is being offensive, vulgar, or just plain annoying to you online, then you can contact the service providers to get that person banned from the service. If you contact Facebook and report bullying, then the person will face the embarrassment of being booted from his or her Facebook account and will have to explain why. Reporting the person can show that you mean business and is likely to make him or her back off. If the cyberbullying is getting out of hand and the person is regularly bothering you with hurtful, mean, spiteful, and angry comments, then you can't keep ignoring it. If you feel like you've tried everything or that you can't face this alone, then it's time to talk to an adult or an authority figure at your school about the incident to stop the situation from happening. It's never too early to report bullying to adults, and you should never think that you're being cowardly for stepping forward. In fact, it takes real courage to stand up for yourself and to say something to prevent a situation from happening.

Summary:
Don't respond. Block the bully. Save the evidence. Create more private settings. Think about what you post. Report the bully to service providers. Report the bully to adults.