12 Important unspoken rules in life everyone should know. 1. Don't interrupt when someone is talking. 2. Don't judge someone by their appearance. 3. Always respect someone's personal space. 4. Never assume something about someone. 5. Apologize when you're wrong. 6. Don't talk badly about someone behind their back. 7. Be honest, even if it's hard. 8. Don't gossip or spread rumors. 9. Don't stare or make inappropriate comments. 10. Treat others how you want to be treated. 11. Offer help when you can. 12. Don't let your anger control your actions.