(1) Don't put too much emphasis on the kindness of others, which will make people feel inferior and even tired of you, because on the one hand, they feel that they can't repay the kindness, and on the other hand, they feel that they are incompetent.
(2) You may as well give small favors to others. Don't let them think that you are trying to please them on purpose. In this way, the "human feelings" you give will be worthless.
(3) When the other party doesn't need it, don't be "amorous", because your gift will make the other party feel redundant. The other person may not be in love with you.
The propriety of gift giving
When you don't know the strength of the other party, you can ask questions in a euphemistic way - Mei You Mo Qing Dui Fang De Shi Li Shi Ke Yong Wan Zhuan Xing Ti Wen Fang Shi
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Treat future customers with comfort - Dui Dai Wei Lai Ke Hu Yao Jiang Jiu Shu Shi
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Follow the big customers and avoid the risk of stamp products investment - Gen Zhe Da Hu Zou Bi Mian You Pin Tou Zi Feng Xian