阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词。

    Eating in Western restaurant is a little different from eating in Chinese ones. It is ____ to understand the differences and to act politely. As their saying goes, “When in Rome, do as the Romans do.”

    When you first arrive at the restaurant, you should wait for the waiter to ____ you to a table. Sometimes it is all right to ____ a table for yourself, but you should ask ____. In the Western restaurant, each person usually asks for their ____ food or dishes and eats ____ they ask for. Western people don't put all of the food in the middle of the table to share.

    One of the ____ differences between Chinese restaurants and Western ones is that most Chinese restaurants are noisy, but most Western restaurants are ____ and people there speak in a low voice. Don't shout to the waiters, ____ people may think that you are rude.

    If you need help, you should try to ask with your eyes ____ of your voice. It's better not to put up your hand, either.