原文作者：杨帆

　　an american friend has invited you to visithis family. you've never been to an american'shome before, and you're not sure what to do.should you take a gift? how should you dress?what time should you arrive? what should you dowhen you gel there? glad you asked. when you arethe guest, you should just make yourself at home.that's what hospitality is all about : making peoplefeel at home when they're not. [论文网]