Well, making tuppers is a pretty big thing honestly. And you learn so much about yourself in the process. I bet if you manage to do this, you come out as a pretty happy and confident person. But hey, if my shit helps then use it to your advantage, I guess.
As for getting "life" to a tupper's form, I guess that's the part where they should be aware enough to actually move. Unless you would rather puppet them. But I guess you could also mention that the form is the tupper's form and they can use it without your permission and everything, just in case they are unsure. Don't treat their form as an unmoving doll either, as such assumptions seem to sometimes force the body still. In your case your poor visualization skills might even make you miss some of the smaller movements, so this could also be a case of you not noticing something rather than something that doesn't exist in the first place. I guess you could see if you can make the form actually breathe, though. It doesn't really have to do that, but it does make things seem a bit more "real" and "alive", and it's something that should be automatic in that case. So I wouldn't really call it puppeting or anything if you make the form to start breathing and make it automatic.