i am a new comer and need your help

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Greetings i am a new comer here , and have many unknown things, i need your help .such as how to find and create friend , how to find the topic i interested in ,etc. by the way, i come from Changde, Hunan , China, a beautiful city , the food there is very delicious ,the people there is friendly , also it has fresh air and charming scenery i will share with you in my later discussion.