Did you do anything very helpful for other people before? If you don’t, why not? I believe everyone should burn themselves for others. Everyone should contribute to this society, and the easier way to contribute to the society is making friends and helping your friends. If someone asking for your help, do you help him/her without hesitation? I believe everyone should contribute to the society.
Two years ago, my friends and I created a Information Technology community for junior high school and high school students to ask question and chat. And now, we have about 170 people in our community, and there are lots of question in our community everyday. We help each others for coding issues, homework, and making some projects for open source communities. I think this is my first important contribution of the society.