[JLV]

I've always assumed that the figures in TFT were using some basic common sense in their movement -- that is, not rushing blindly at their opponents, perhaps observing how they move, noticing if they favor a particular side, taking the time on their approach to examine their enemy's equipment...

You know, moving tactically, not expediently.

Let's face it, if we're running a footrace over a cinder track while competing for a prize, we move differently than we would if we were approaching a duel to the death with an unknown warrior/creature who can kill us right back.