书面表达。
假设你是小明，将有一名美国的中学生Tim来你家做客，并呆上两天。请你向这位首次来中国参观的外国客人介绍一些中国的日常礼仪。（如：见面礼仪、餐桌礼仪等。）文章开头和结尾已给出，字数80字左右；
Dear Tim,
                                                                          
                                                                          
                                                                          
                                                                          
                                                                          
                                                                          
Yours,
Xiaoming