I love it

...that this got you so worked up!

I put "immediately investigate," mainly because I would not want there to be a chance for it to "get away." From all accounts, these kinds of events can be extremely fleeting, and I wouldn't want to miss it. It seems like it would be very easy to convince myself it was something else if I let it sit so long that there was nothing there when I went to the room.

The state of my approach would probably vary greatly depending on my state of mind at the time. If I were feeling particularly bold and excited, I would probably immediately rush to the room, focusing my mind as I approached. If I were feeling timid, I would probably turn on all of the lights on the way.

Of course, my greatest hope would be that I would see something life-transforming that was not dangerous. Probably my greatest fear would be that there would be nothing unusual at all, leaving me to wonder about the experience. A threatening paranormal experience would probably rank right after a positive one, for I am confident in my ability to deal with it (as you said, turning fear into anger can be very useful in such situations), and such an experience would energize me and inspire me.

I think that what I would honestly *expect* to find would be something vague, like a tingling presence or a noise or a shadow that fades away among the other shadows. And of course, expecting that, that is most likely what I would encounter. I know that a person who is truly open could experience something much more profound, but we only experience what we're ready for. I'm working on being open to all possibilities, especially the ones I want to manifest. As I do so, I'm definitely having more interesting experiences.