In my opinion, a good friend have some qualitys. First quality is truth. I think it is the most important in friendship. A good friend doesn’t act out from self-interest. Next is unselfishness. He/she will share all his/her secrets with you. You can share everythings with him/her and don’t worry. You always feel close when they stay by your side, like sisters or brothers. Enthusiasm and constancy are important, too. They help you have a long friendship. Let you remember, a beautiful friendship never have rumours or gossips. It’s truth. A good friend always have altruism. When you have mistakes, he/she will forgave. He/she symphthize and friendly. He/she always help you whenever, wherever when you need him/her. But, I think before you look for a good friend and keep him/her, you must become a good friend. That is the best important things.
( những cái mk suỵt ngang thì nếu là con gái hoặc con trai nha) tùy bn
Nguyễn Thị Mai
Nguyễn Phương Linh
Help me !!!!!!
In my opinion, a good friend should help you when you sad.And if you not understand about what, she will help you.
P/s: Mình không chắc ngữ pháp sẽ đúng 
