Developing the suggestive - according to Mare-Louise von Franz (her type is C-LII in my opinion)
Sometimes when reading jungian litterature you can get interesting information on typology. You just have to be careful with the terminology. They usually only pay attention to the base function, so distinguishing only 8 types.
Threre's some advice on how to develop the suggestive function in the book The problem of the puer aeternus, by Marie-Louise von Franz. It is found in chapter 5. In my book pages 99-103.
As far as I can tell Jungians refer to the suggestive function as the "inferior function".
Basically her message is that the "inferior function" (suggestive) is a very delicate thing and one has to approach it on its own terms. (If one wants to actually develop it)
I can't quote everything here, but here are some of the things she says:
It has to do with the inferior function, through which the renewal comes, which has remained childlike and completely naive. It threrefore conveys a new view and experience of life when the worn-out superior function comes to its end. It imparts all those naive pleasures which one has lost in childhood. That is why we have to learn to play again, but on the line fo the forth or inferior function.The really difficult thing is to turn directly to the inferior function and play there. For this the ego has to give up its control. If you touch your inferior function it decides on the kind of play, you cannot decide on it. The inferior function, just like an obstinate child, will insist that it wants to play at something or other, though you may say that that is not suitable and would not work well.The ego always has thousands of objections to turning to the inferior side. It is always something very difficult to arrange practically.I would say that the main thing in getting to the playfulness of the inferior function is to scratch away the pseudo-adaptation with which we all cover the inferior function. The feeling type, for instance, is usually full of school and university theories and images that those are his thoughts. But they are not; they are pseudo-thinking adaptations to cover up the fact that his real thinking is awfully embryonic and naive. The same holds good for the thinking type who has very naive feelings; for instance "I love you, I hate you".Thinking types are often quite amiable and seem to have balanced feeling reactions, but never trust that!
The essence of play is that it has no meaning and is not useful. I would tell a feeling type to learn by heart what he needs for exams, and not try to think, because he won't be able to do so. He should make pseudo-adaptations, and if a thinking type gets into a situation where he has to behave - say he has to attend a funeral - then he must on no account pull out his personal feelings. He must just behave and do the conventional thing with flowers and condolences; that is the right pseudo-adaptation. To get at his real feeling, the thinking type must find a situation where he can play, and then it will be different.I think nobody can really develop the inferior function before having first created a temenos, namely, a sacred grove, a hidden place where he can play. The first thing is to find a Robinson Crusoe playground, and then when you have got rid of all onlookers you can begin! As a child, one needed a place and time and no interfering adult audience.