It’s easy to get to know someone. Just know their name and introduce yourself and we’ll know each other. But it's not that easy to get to the point of being heart-to-heart. This requires a long process, in which both parties have to experience some things together. There is a saying that a friend in need is a friend indeed. When one party is in difficulty, if the other party lends a helping hand when the other party is in difficulty, this will Make the other person very grateful. Even if it doesn't reach the level of heart-to-heart communication, it will be remembered for the rest of his life. The premise is that the other person is a grateful person. If the other person is a loyal person, then you need to pay attention when getting along with him. If your brother is in trouble, you will be hurt at both ends. If you can do this, you can become his close friend