Chileans speak Spanish with a strong accent but the language is basically the same with some different uses of words, as in Australian and American.
Anyone who has the opportunity to learn Spanish before visiting will benefit greatly from the effort and work put in. Many Chileans speak a little English, but it is rarer in the countryside or among the local people who work as guides for horse riding. Their skills lie elsewhere, but they are mostly good at non-verbal communication, coming from a background where reading and writing fluently is not the norm.
Basic phrases and words for horse riding:
Horse = Caballo
Stirrups = Estribos
Saddle = Montura
Short = Corto/Corta
Shorten your reins = Acorta las riendas
Shorter stirrups = Estribos más cortos
Longer stirrups =Estribos más largos
Confortable? = Cómodo?
Up = Subir (as in subir a caballo: mount / subir la montaña: go up)
Down=Bajar (as in bajar del caballo: dismount / bajar la montaña: go down)
Left = Izquierda
Right = Derecha
Useful slangs to survive in Chile
Cachai? = Do you understand?
Chela = Beer
Bacan = Cool
La raja = Cool / Great
Weon = Stupid / Mate / Dude (meaning depends on context)
Wea = Stuff
Carrete = Party
Cuatico = Weird
Mula = Fake
Ni cagando = No way
Pajero = Lazy
Copete = Alcoholic drink
Piscola = Pisco + coke