Use of deception
From ex-recruit "Giselle" at http://www.lyndonlarouchewatch.org/giselle.htm
You are quickly made to take actions like selling newspapers on the street so that you will be drawn in. Selling the newspapers has a powerful influence on making you more convinced and convincing. This whole process happens very quickly, over a period of a few weeks or even just a few days. New recruits are deliberately and as soon as possible sent out into the streets to meet others. It is a way to make them confront their own doubts. This is a very subtle and effective way of recruiting, since you meet people who may have the same hesitations as yourself, the same interrogations, the same criticisms, but since you are in the position of the person who does not need to be convinced, you take on the role of the one supporting the organization. Even if you know little and are not really convinced of what you are saying, you are led into a situation where you try to convince someone else. You are saving the world and you get a rush from this. The other person becomes your double, and you will be able to experiment on him as on a guinea pig. If at this point you hear any outside criticism like you are in a cult or are fascist this only intensifies your resolve. This is because you are offered no answers to these criticisms and only encouraged to despise the people who criticise you. You feel more one with the organizers because you appear to be criticized.