In the contemporary world, Internet has become increasingly popular among young people. Nevertheless, there is so much fake information which makes it hard for us to judge. If we cannot judge the correctness of the details on the Internet, we are likely to make wrong decisions. So it is crucial to learn how to spot incorrect information. We can start from the following aspects. In the first place, we should think twice about reading online messages and comments. What's more, young people should also shoulder their responsibility and only forward messages that are sure to be correct. Last but not least, we should actively report the spreaders of false information to prevent the spread of misinformation. In conclusion, one should establish the ability to distinguish right from wrong based on real facts and experience. I hold a firm belief that if we do as above, the future of the Internet will be hopeful and rosy.