Have you ever noticed how, when sitting in your room at night with the lights on, it's difficult to see out your window? The brighter the light, the more opaque the reflection of your room is.
You could put your face close to the glass and see out, but why? You're in your room, with all the lights on, surfing the net. Nothing to worry about.
Then again, it is kind of creepy, when you think about. You, staring at your computer screen, totally absorbed, all the while anyone or anything could be just on the other side of that pane of glass. Watching you. Silently.
But of course, you could just turn off the lights and look out, dispelling any creeping feeling that may be rising up in you.
Unless there was something out there... and you've just removed the only barrier that blocked its entrance.