So what you do one day is you take a pile of arrowheads, and you walk up to the one that can't speak very well, and you put the arrowheads down in front of him, hoping that he'll get the idea that you want to trade your arrowheads for finished arrows.
Així que un dia agafeu un munt de puntes de fletxa i aneu cap al que no parla gaire bé, deixeu les puntes de fletxa al seu davant, creient que entendria la idea que voleu intercanviar les puntes de fletxa per fletxes acabades.