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.
Então, você pega num monte de pontas de seta, dirige-se àquele que não sabe falar muito bem, mostra-lhe as pontas de seta, esperando que ele perceba que você quer trocar as pontas de seta por flechas acabadas.