1. Don’t be greedy. The first step for countless people to be deceived is to act greedy. Benefit makes the mind dim, but lack of desire makes one strong.

2. Don’t talk deeply when communicating. Do not give important information to a person before you have a clear understanding of his or her character.

3. Don’t reveal your wealth in vain. Know how to control your vanity and desire for expression, and never show off. No one would go out of their way to deceive someone who seems to have nothing.

4. If you don’t understand, don’t do it. If you don’t understand, ask more questions. Not doing it doesn’t mean never doing it, it means not investing too many resources rashly before you have enough understanding. Ask a few practitioners for advice, and if possible, try it yourself. First-hand experience is often more reliable than second-hand information.

5. Don’t rely solely on old impressions from long ago to build trust. For example, classmates I haven’t seen for many years or relatives I have known since childhood. Firstly, maybe you were not deeply involved in the world before, and your judgment of people was not vicious enough. Secondly, people will change. Don't just rely on a good impression as soon as you get into a relationship and have nothing to do with it.

6. Contact government agencies when necessary. What should I do if I encounter a situation where a passerby asks for help in an emergency, but I am not sure of the authenticity, feel guilty if I don’t help, and fear of being deceived if I help? It’s actually very simple, ask government agencies to intervene. If you are cheated and don’t have travel expenses, there is a police station; if there is a consumer dispute, there is the Industrial and Commercial Bureau, etc. Anyone who makes excuses not to involve the police or other government departments must be a liar.

7. State agencies or financial institutions will not ask you for any personal passwords. They can all be checked by obtaining permission through the program. There is no need to ask for it from you, let alone your consent:)

8. Master basic legal knowledge. In this way, even if you encounter someone wearing a uniform or taking out your ID, you will know what to expect. By asking a few questions, you can know whether these people are pretending to be state workers, and you can also know what things they have the right to ask for and what things they have no right to ask for, even if they are real.

9. Don’t rush. Many things can actually be figured out if given enough time. I'm afraid that when I meet someone who sings an oboe, I will be urged and anxious, my head will be sweating, and I will make a decision in a hurry, only to realize that I have fallen into a trap.

10. Don’t be proud. Don't think that those who look uneducated are careless, and don't think that those who look like they don't have much money and don't talk much mean they are honest and humble. No matter how many books you have read, if you are scornful first, ordinary people who pretend to be pigs and eat tigers will still have the opportunity to deceive you.

11. Stop loss. Being cheated on, that’s okay. Try your best to make amends, and if it doesn't work, admit your mistake and get out as soon as possible. Don't be unwilling to sink deeper and deeper just because of face or sunk costs. Countless gamblers have gone from a small loss to nothing because they were obsessed with recouping their losses.

12. Reflect. Bismarck said: "Every fool will learn from his own mistakes, and a smart person will benefit from the experience of others." Thinking should never start after paying the price.