Sometimes the best lessons about marketing come from the most unexpected places. The videos below are taken by a traveller to India who met a kid on the street selling a peacock feather fan. This kid - dubbed the "lingo kid" in a YouTube video shares his linguistic skills that he learned from tourists on the street to sell his wares. In the second video, the same traveller returns to interview the boy again (his name is Ravi) and learn more about him. Both videos together offer one of the most simple marketing lessons that you can imagine ... that sometimes it doesn't matter what you're selling, just that you speak the right language.