IfanAmericanissatisfiedwithyou，hewillputhisthumbandfore...
問題詳情：IfanAmericanissatisfiedwithyou，hewillputhisthumbandforefingerintoacircle．ThatmeansOK．ButinBrazil，theverysignisconsideredtoberude．InPoland，aguestusuallypresentsflowerstohishostess．Thenumbermustbeanodd...