2. Instinctively protecting yourself takes time to understand the process. Dogs also like to bark at each other, what's more, people with advanced animals need to have the same hobbies, complementarity, understanding, sharing, obligations and responsibilities to become friends.

3. On the contrary, making friends at will is too complicated, too tired and too cherished. Too much is not cherished, which is the characteristic of human desire. Too many friends have no energy to deal with it, no matter through the ages. I said that I fell in love with you as soon as I saw you, as if I had been in a previous life, and now I have to "borrow money" to go to your house for dinner. Can you accept it right away?

It is enough to have one or two confidants in life. The emperor also claimed to be a widow, that is, there were no intimate friends who shared weal and woe, and it was difficult for anyone to "know each other", which gave him the advantage of asymmetric truth or information.

5, unless the establishment of a community party business people think that the more customers, the better, but that is not a close friend, can be described as a friend or trading tool. This also needs media publicity and reference, and needs to think over the pros and cons to decide the road of life or what to buy.