Need for Keen Observation
It is generally observed that you pass through particular places a number of times but you never observe keenly the objects around you. You may see them but you never observe and there is a difference in seeing and observing things. For example, one sees his watch many times a day but yet can not tell the correct time. If anybody asks him for it, He has to have a second look. The first thing to improve memory is keen observation.
Association comes next with an object. One can not remember one thing which he has not observed. And once something is observed it must be associated in our mind with or to something we already know or remember. In simple words, Association in relation to the memory means connecting two or more things to each other.