While each of us 'learn' in different our own unique way, often it is the simulation of many of our senses that helps us to recall and to learn.
We learn kinetically through our actions which can be aided through manipulative learning techniques, whereby someone guides and individual through the motions of an activity until the body remembers the motion to imitate (using sense of touch, sight, and little hints of other senses), rather than simply imitating from just observing (vision) an action. Similarly, they say one can engage particular 'sense memory' by having a particular scent (smell) or sound (hearing) whilst studying and reengaging that sense during an exam will aid with recall.
I find it particularly interesting how we learn from our senses and when placed in the context of learning from other people. While it is possible to learn by observing and reading as you are as you are reading my blog right now. I find if this was presented to me in a way that engaged more of my senses, perhaps in a video or podcast, then it would engage my other senses (vision, hearing) and in doing so allow me to retain the information in many different sources (a vision memory bank, a hearing memory bank) rather than just the one.
Either way, knowledge of what works best for you and how you can been develop and engage your senses may be the key to you retaining that extra bit of information for that presentation, test or just to recall those crucial details of your significant relations...