This is a little something I wrote up, since I was thinking about it while doing some yard work. It's rough, but I wanted to pop it up anyway, it may be useful to someone:
The art of letting go
While I was working, this idea came to me, concerning the development of independence, and the insurance that the host is not moving their companion as a puppet, while still being aware of their ability to control things. This is the act/art of letting go of control. To drop my strength, drop my doubts, drop my expectations, and come to the figure, seeing metaphorically eye-to-eye, and communicating as such. This requires not trying to shift about things, no matter how odd or out-of-character they may seem. Not trying to correct their responses, but letting them speak as they will, and taking it as theirs unless they themselves reject it.
To truly treat them as another person, and not as a doll to be toyed around with. This also involves allowing them to affect you, as one person would another. Treating their sadness as if you were witness to a person being sad before you. Treating their joy as you would another person's joy. Levelling with them on their own terms, rather than yours. I believe this is the vital step in having them grow further, and I wish to expand on it and explore it.
There is also the flip side: Bringing them up to my level, and my outward existence. Letting them see things from my eyes, though without the ability to steer the boat, as it were. To let them come see my world, just as I come to see their's. The idea still applies: Allow their action and reaction to be their own, do not interfere or try to correct or change what they do or say directly. Rather, treat them as another when they do something, and if it is something you dislike, reprove or question them, rather than force them to change. This is the sort of technique I do, and wish to expand, putting in to practice.
Of course, there is the counter of this: Knowing where the response is coming from. I'll call it 'the act of identification'. The above assumes that this is not as big of an issue: Where the figure is speaking with a voice that is theirs, that their behaviour carries their presence, rather than the host's, etc. I feel these issues still stem from the inability to completely let go of control. In this case, the issue is that the host is still holding on to expectations, or their doubts. The former being a sort of standard of behaviour that the host desires their partner to stick to, the latter being as a weapon, where the host crushes things that do not meet a standard of believability. Or in another sense, doubt is the host not allowing the figure to affect them as another person would.