The Russians have a saying:
We learn two ways: passively and actively. We passively learn a new language when we live in a foreign country and are forced to learn how to say “milk” so that we know where to find it in the grocery store. If we were to actively learn a new language we would sit down with an instructor or a book to study vocabulary and grammar. Active learning usually requires more focus than passive learning, but passive learning is more difficult to facilitate.
A great way to both passively and actively learn something is to teach it. Teach it everywhere you go, then take some time to study and think through how you would teach it better. In doing so, you will gain the necessary repetition required to become an expert in something.
We all have things we are learning every day; therefore, we all have things we need to be teaching. Take some time not only to consider what you have gained knowledge in but also what your platform is. Are you a manager who runs meetings? Do you have a blog? Do you have a large social media presence? Are you well respected amongst your family and/or friends? We’re all teachers. Learn something with the aim to teach it and teach something with the aim to learn.
And remember, repetition is the mother of all learning.