介绍:
10. Knock on closed doors and wait to see if there's a response before entering. 门若是关着的，请敲门，等着回音，再进去。
11. When you make a phone call, introduce yourself first and then ask if you can speak with the person you are calling. 当你打电话时，先介绍自己，然后问可否与你要通话的人交谈。
12. Be appreciative and say "Thank you" for any gift you receive. In the age of e-mail, a handwritten thank-you note can have a powerful effect. 收到任何礼物，都要感恩，并说“谢谢”。在电子邮件的年代，手写的感谢卡价值尤显珍贵 。
13. Never use foul language in front of adults. Grown-ups already know all those words, and they find them boring and unpleasant. 在大人面前绝不可以说粗话。大人早就知道这些脏话，他们觉得脏话沉闷又粗鲁。
14. Don't call people mean names. 不要给人起卑劣的绰号。
15. Do not make fun of anyone for any reason. Teasing shows others you are weak, and ganging up on someone else is cruel. 不要因任何原因取笑任何人。取笑人表明你很软弱，与别人合伙来欺负人是很残忍的事。
16. Even if a play or an assembly is boring, sit through it quietly and pretend that you are interested. The performers and presenters are doing their best. 即使戏剧或集会很乏味，仍然要安静地坐到最后，假装你是感兴趣的。表演者和演讲者都在尽全力。
17. If you bump into somebody, immediately say "Excuse me." 若不小心碰撞到别人，立即说“对不起。”
18. Cover your mouth when you cough or sneeze, and don't pick your nose in public. 咳嗽或打喷嚏时，请遮住嘴。不要当众挖鼻孔。
19. As you walk through a door, look to see if you can hold it open for someone else. 当你穿走门道时，看看你能否为他人扶门。
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