On another note, if you know about mental preferences of people you can use that to perform seemingly paranormal feats in predicting human choices. You only have to know about less well known preferences and then you can amaze an audience by trying e.g. 'to project a number on your mental screen' (Kreskin). Well, not all of the audience will have your number (we are talking here about preferences, not about determination), but the majority will have and you get a big applause.

Kreskin once did (perhaps still does) a well trained and impressive routine in which he 'predicted' which number between 1 and 50 his audience would choose 'spontaneously'. A good show with a lot of prompting and an impressive result to the uninformed. Kreskin is a great mentalist who is sometimes less than clear about the source of his abilities and doesn't always clearly contradict if there are rumours that his feats are paranormal.

Wolfgang