Quote:
Among Erickson's best-known innovations is the hypnotic handshake induction, which is a type of confusion technique. The induction is done by the hypnotist going to shake hands with the subject, then interrupting the flow of the handshake in some way, such as by grabbing the subject's wrist instead. If the handshake continues to develop in a way which is out-of-keeping with expectations, a simple, non-verbal trance is created, which may then be reinforced or utilized by the hypnotist. All these responses happen naturally and automatically without telling the subject to consciously focus on an idea.
This induction works because shaking hands is one of the actions learned and operate as a single "chunk" of behavior; tying shoelaces is another classic example. If the behavior is diverted or frozen midway, the person literally has no mental space for this - he is stopped in the middle of unconsciously executing a behavior that hasn't got a "middle". The mind responds by suspending itself in trance until either something happens to give a new direction, or it "snaps out". A skilled hypnotist can often use that momentary confusion and suspension of normal processes to induce trance quickly and easily.
http://en.wikipedia.org/wiki/Milton_H._ ... _induction
I respond to a handshake invitation with a wrist grip, it is unexpected, but the implied suggestion that the other person should do the same thing puts them immediately in a state of mind where I should be trusted and that my suggestions are good ones.
Using that and things very similar to what Erickson describes is what I mean when I say my "improper method of social interaction is to control the possible outcomes in such a way that the other party thinks they are making all the decisions, rarely noticing that they're choosing from only the options I lay out, either by agreement, or denial, both of which can be constructed to obtain the effect I am after."
Responding to situations in subtly unexpected ways produces predictable results. Telling someone who asked for direction "you have to go this way, follow me" inspires a mental question "why should I?", whereas telling them "you can come with me if you want" sets them up to adopt the assumption as their own.
The handshake thing is just an extension of that, "follow my lead" without directly stating it.