Someone who's personal definition of reality, is stronger than the view of the general consensus. A reality tweaker is someone who percieves things correctly, but perhaps, neglects to hone in on the smaller details, that fill out the bigger picture, therein bending the facts to their own whims. It is impossible to get an accurate retelling of events from a reality tweaker, and it is difficult to convey common sense instructions, because many facts will be tweaked, and lost along the way. Never assume that a reality tweaker will understand the simplicity in what you are trying to convey. Reality tweakers are not dumb or retarded, and my surprise you ultimately by their ability to understand complex ideas as well. It is impossible to ever truely predict the actions of a reality tweaker.
Jean: Kyle what are you doing with that VHS tape?
Kyle: Well, my grandma gave me this video to watch, but I don't have a VCR, so I'm running it under the tap to soften it up so I can crack it open and watch the pictures inside. It's gonna be great!
Jean: There are no pictures inside, it's a magnetic strip!
Kyle: No, you see, the water will be polarized by the magnetic charge, and I'll run through the strip, then it'll get subliminally imprinted onto my brain, and I'll dream it next time I sleep. I've got it all figured out.
Jean: Reality Tweaker!