Foralongtime,thetraditionalmethodofidentifyingliarswast...
问题详情：Foralongtime,thetraditionalmethodofidentifyingliarswastowatchtheirbodylanguage,includingfacialexpressions.Whatifthepersonappearstobenervous?Isthepersonunabletolookmeintheeye?Isheorshelookaroun...