Dāngrán péngyou zhījiān huì gèng suíyì dàn dì-yī cì zuòkè shí duō liú jǐ miǎo zhōng gèng yǒu lǐmào

当然朋友之间会更随意，但第一次做客时，多留几秒钟更有礼貌。

Of course, between friends it's more casual, but when visiting for the first time, staying a few extra seconds is more polite.