小费: tip, gratuity...
怎样: how, what kind...
您: you (courteous, as opposed to informal )...
民族: nationality, ethnic group...
猜: to guess...
颠倒: to turn upside down, to reverse, back to front, confused, deranged, crazy...
神情: look, expression...
笔记: to take down (in writing), notes, a type of literature consisting mainly of short sketches...
按照: according to, in accordance with, in the light of, on the basis of...
低: low, beneath, to lower (one's head), to let droop, to hang down, to incline...
