First, treating friends sincerely means being sincere. If you want to make sincere friends, you have to give your heart first. We must be sincere, otherwise we can't make good friends and sincere friends.

Second, be more enthusiastic about helping others. In this way, you will make more friends, and friends will help him as much as possible when you are in trouble, so that others will help you when you are in trouble.

Third, to make friends, you should choose to recognize people. Don't make friends with unfilial people. Such people are not even filial to their parents. How can they be sincere to you? Don't make friends with people who are too selfish and ungrateful. This kind of person always feels that others put their own interests first, and others don't know how to thank him for his efforts. How can we have friendship?

Fourth, be tolerant of friends. Be polite to your friends, regardless of gain or loss. Everyone has shortcomings. Accept the shortcomings of friends and seek common ground while reserving differences, so as to make more friends. Sometimes when a friend asks you for help, you should learn to accompany and listen, not criticize or suggest, so that you can easily gain the trust of your friend and be willing to be your good friend.