As a teacher of a language, it is very important that you are aware of language. If your language is English, you should know a lot about the language, not only the words and grammar but also sayings, proverbs, jokes, silly things and even issues with your language. 

As in the What is Language Awareness article, we should be the ones helping people like Ramon and Carla. As in the article, and said by Maarten, we should keep some kind of log, in which we write down things that capture our interests. 

Language is the way of conversing, and it is always changing. The internet has new acronyms and words every month, and if you don't pay attention to new words, and learn to use them yourself, you will fall behind. We should always be up to date with language, and help others to be up to date too.