Have you ever wondered why we say "feet" rather than "foots"? Or what we do with our mouths to make a b sound different from a p? Or why we rarely say what we actually mean? It's questions like these that intrigue the linguist!
Many people think that a linguist is someone who speaks many languages and works as a language teacher or as an interpreter at the United Nations. In fact, these people are more accurately called "Polyglots". While many linguists are polyglots, the focus of linguistics is about the structure, use and psychology of language in general.