People with a narrow mind must read

Having no heart is not wrong, but being unguarded is foolish! Here are 20 practical tips to help you avoid unnecessary losses in social interactions.
1. Keep your financial situation private: Regardless of whether you are wealthy or not, avoid discussing your family background with outsiders to prevent jealousy or scheming.
2. Keep your secrets to yourself: Your secrets, embarrassing moments, and emotional entanglements should stay in your heart; let heaven, earth, and yourself know.
3. Beware of sudden friendliness: Especially overly enthusiastic older strangers; unsolicited kindness often has an ulterior motive.
4. Don't treat relatives as neighbors: Distance creates beauty; frequent encounters with relatives can easily lead to conflicts.
5. Walk away from private questions in interviews: If asked whether you have a boyfriend or when you plan to get married, it shows a lack of respect for women.
6. Protect your personal details: Girls should avoid hanging underwear in obvious places to prevent bad people from taking advantage.
7. Be decisive in refusal: If you don't want to give something, don't hesitate—ask directly, "What are you offering in exchange?" Using offense as defense is more effective than meekness.
8. Keep four secrets: Don't reveal your goals, finances, family matters, or mistakes to avoid trouble.
9. Be clear about money: Don't touch money that isn't yours; don't be stingy with what you should pay; character is more important than money.
10. Leave some words unsaid: Say 30% to strangers, 50% to acquaintances, and only 70% to family; never reveal your full hand.
11. Don't boast about your salary: Tell relatives "It's enough to get by," and colleagues "It's about the same as yours" to avoid jealousy or being undermined.
12. See through but don't expose: Many people's "care" is just to confirm you're not doing better than them; don't foolishly open your heart.
13. Avoid gossip at work: Walls have ears; what you say about others today may reach their ears tomorrow.
Learn to be kind with a prickly edge
14. Be enthusiastic but not to please everyone: You can be kind, but also firm; habitual flattery will make others take you for granted.
15. Don't be a "post-it note": Helping others doesn't mean being at their beck and call; when asked to bring breakfast or pick up packages, learn to say "I'm busy."
16. Don't fear conflicts: Wherever there are people, there are struggles; confront when necessary—winning gives you the power to speak.
17. Don't show your emotions on your face: An expressionless face with hidden thoughts makes others respect you more; those who speak little and act decisively are less likely to be underestimated.
18. Learn some social skills: Not to play tricks, but to understand human nature and avoid being taken advantage of.
19. Be only superficially friendly with colleagues: The workplace is a place of interests; competition exists, so don't treat colleagues like best friends.
20. Keep your cards close: Don't reveal everything to everyone; hiding your true intentions allows you to surprise others and maintain the upper hand.