Foralongtime,thetraditionalmethodofidentifyingliarswast...
問題詳情：Foralongtime,thetraditionalmethodofidentifyingliarswastowatchtheirbodylanguage,includingfacialexpressions.Whatifthepersonappearstobenervous?Isthepersonunabletolookmeintheeye?Isheorshelookaroun...