I believe that the Slender Man following me is… observing me. While it itself is trying very hard not to be observed. You might think this obvious for a stalking creature, but I mean that I believe it is trying to glean knowledge beyond when to strike. My scans indicate it’s been following me for some time, and still is, but I have seen it only once. In most cases, it seems by now I would have seen it at least once more (though perhaps reading/viewing the logs so “late in the game” has simply skewed my expectations). And those sounds so early… It makes me think it may be trying something different.
It is trying to learn. What I can’t be sure of. I assume that it would want to learn what scares me, considering that its modus operandi is to terrify victims before they disappear, or die. I can’t explain precisely why I feel that it is trying to learn about me, but I suppose it just seems… cautious. I could simply be misinterpreting its actions, but my gut is telling me that it’s trying to learn. The sounds could have been for probing me. Could it have predicted the scans? How does it expect me to react? How should I react? Why did it choose to show itself to me? I still have too little concrete information to infer anything useful.
At any rate, I will be careful and observe it as best I can. It's likely still too soon to be making such a conclusion, anyways. I will keep my eyes open and my mind sharp. The mind is the only effective sword and shield that I know of at the moment. I intend to use it as much as possible.