1. They keep it in its theoretical form; phrases, words, and facts to be memorized and repeated later (on some supposed test)
2. They apply it. They allow the knowledge to mix with the other experiences they have had and the knowledge they have acquired. They allow it to inform their perspective on the other situations they encounter. They let it become integrated into their knowledge base.
It seems to me that the people who fall into the second group, who let learning constantly shape their outlook and their understanding (whether it stays within in the category of singing or music history, or whether it affects their other classes or even interactions with peers), are the people who have more fulfilling lives and who actually end up doing better in class.
More importantly, they are much more fun to teach, because they love every little piece of information they get!
So, can you help someone convert from a number one learner to a number two learner? How do you do it?