Yeah sure, harass. But what I mean is that some people choose to harass the enemy and not last hit those three minions on half hp for an easy 70g before they die.
Yep we know we're on the same wave length here. I don't know if it's me, my connection, my reactions or whatever but early on getting that last hit before the minion dies is a real art of timing - again champion dependant.
I found this on the forums which may be of interest particularly to the newer players, basically its a suggestion that lol has a tips post everytime you login and then people have put tips which have been compiled at the top. Most of them are common sense but worth the look
http://euw.leagueoflegends.com/board/showthread.php?t=306646