An F/N is created by thinking "happy thoughts" in a very intense way. If you create a sort of giddy feeling, remember something that was intensely fun or interesting or exciting, the needle frees up and you can get an F/N. You can't do this over and over and over again like a parlor trick but you do it often enough at the right times and the F/N comes. There were a couple of times when I did this and the meter would read and I'd have to dig around and "find" something to answer the question and then do it all again when the sec check question was being re-checked.
I'm sure other people have already run this subject into the ground so I don't think I need to go into a whole treatise on why the E-meter does not work. I don't have any scientific evidence for whether the thing works or not, I just know that I could get away with not having to answer sec check questions despite the best efforts of people who were trying to read me on the meter. Scientoloigsts or FZers would claim that the reason for this is that I was not "in session" so of course the meter didn't work. Well fair enough, but how "in session" is someone supposed to be when they are undergoing Maoist reconditioning on the RPF or being forced to confess to "crimes" that they don't think are crimes just because of someone else's screwed up moral code? Scientology sets up impossible situations and then blames the victim time after time for why it "doesn't work".
Perhaps if I really was in a situation where I was "in session" (interested in my own case and willing to talk to the auditor) the meter would work. I have to admit to that possibility because there were times when the meter seemed to work. But there were so many times it didn't and so many times it was used to throw me out of session and so many situations I was in that I was anything but "in session" that I will never pick up the cans again to find out if the meter works or not. I could care less at this point.
Yes, I was once so tired of Objectives that I managed to fake an F/N by concentrating on a happy thought.
However, I would not claim that I could do that everytime or on command.