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1. There are, however, some   situations where smaller non-verbal signals are more appropriate. In a  , for example, if we want to attract the attention of our waiter, we have several choices. We can wait   he passes near us, catch his eye, and nod slightly to let him know we would like him to come to our table. Or we can raise our   slightly to show that we need assistance. We do not   or clap our hands to get the person′s attention. That is considered impolite and even rude.