traditionallyinwesterncultures,birthdaysarecelebratedwithinthefamily.ahighlydecoratedcakewithacertainnumberofcandlestoindicatetheageofthepersonisthemainthinginsuchcelebrations,alongwithsingingandawishattheendofthesinging,blowingoutallthecandlesasagestureofgoodluck.birthdaysofsignificantdigitchangesuchas1,10,40,50,100areusuallytheoneswhicharemoregrandlyceleberated,alongwith18th(legalage)and21st(legaldrinkingageinUSA).forthemostpart,celebrationsarequitesimilarinbotheasternandwesterncultures,withthenumberscelebratedinchinabeingslightlydifferentasinchineseculturethesignificanceof60,73,84andsucharemuchgreaterthantheothers.