In Starcraft, an immensely popular RTS game, there is microing and macroing (nouns). Macroing means building up economy by managing workers and buildings to achieve the greatest efficiency; microing means controlling each units to achieve the best positioning leading to higher survivability and damage output. In league of Legends, only microing exists because you only control one unit -your champion. Microing in LoL is necessary to position yourself to last hit, harass the enemy champions, and most importantly, survive. If you watch pros' livestream, you will see that they are constantly clicking -some might say a bit excessive- to move their characters around even by an inch at a time. Pros are constantly aware of their positions and their enemy's position, of course, being familiar with the range of autoattacks and skills for most characters, they can move in and out without getting a scratch. Sometimes you will see two pros moving back and forth without attacking (except for last hit) as if they are in an invisible tug of war. For pros, microing is their second nature.
