In China, people at a table will usually“Gan Bei”when toasting each other.“Gan Bei” means to raise up one’s wine glass or liquor cup and drink it all the way down so that the glass or cup is“dried up to the last drop”. People dry up their glasses to communicate the message to others that they are sincere and joyful. In foreign guests’eyes, take a sip rather than empty the glass when toasting with the host is more preferable. In order to show respect, younger people or people with lower position should lower their cups to those of the elder or people with higher position when toasting. What is the implied main idea of the paragraph? __________________________________________________________________________