What does civilized service mean by "three receptions, five civilized sentences and three passions"?

2 dress 6 is not allowed: too messy, too bright, too exposed, too short and too tight. 3 men should not wear white socks in formal occasions, and it is best to receive them three times later in the evening: sorry to say goodbye: goodbye 6 enthusiasm three times: give each other a look, two words to the mouth, three words to the mouth, and seven words to the phone. Etiquette: people with high status hang up their leaders first, hang up their peers first, the caller hangs up eight personal questions first, and 5 don't ask: don't ask about income, age, marriage and family. Six elements: appearance, expression, behavior, dress, talk, treat people, 10 Four principles of wearing jewelry: according to identity, the less the better (1) Quantity principle (2) Matching principle.