No matter how long you may “study” the Spanish language, you’ll almost always be somewhat behind and "sound a little off", unless you can incorporate use of authentic language elements into your normal spoken conversation. Besides, who wants to sound like a talking Spanish language textbook?
Examples of authentic lexical elements (real life examples) that can be incorporated:
· Idioms – quirks in the language not definable in a dictionary ("¡Q'hubo!" for "What's Up?" or "Hi")
· Expressions – locally used to express particular situations, ideas and thoughts
· Slang – cultural speech used in specific socio-economic groups (i.e., "Me voy pa`Cali")
· Exclamatory words and phrases – can vary dramatically from one region or country to the next (Examples: “¡Chuta!”, commonly used in Ecuador but not in Colombia where they may say, "¡"Vaya, vaya, vaya!", or “¡Hay Chihuahua!” - used almost exclusively in Mexico)
· Expletives - called "palabrotas" in Spanish - more acceptable in some cultures than others ("¡Mierde!" In French is acceptable under a wide variety of both insulting and non-insulting conditions. In addition, “¡Chavo!, “¡Papaya!” and “¡Cabron!”, in Spanish, are extremely rude, dangerous expletives in some Spanish-speaking countries, but harmless in others)
How commercials can help:
One of my most interesting and useful classes, when I was studying French in Montreal years ago, was a listening comprehension-based course which used an outlined paperback textbook and a series of radio commercials. Many of the commercials were currently playing on local radio stations so you’d even hear them while “toddling” around the city or at home. One radio commercial for apple juice still resounds in my head till this day.
I enjoyed that particular French course experience so much that I’ve since incorporated the concept into my English as a Foreign Language and Spanish for Foreign Language Speakers classes. That French instructor also taught us to “curse” and "swear" in French due to the depth of immersion in the French language and culture. All of us foreign language learners had a blast in that course. I don’t normally recommend cursing and swearing at locals!