Glad you enjoyed it, and even gladder that you'd already noticed how this works!
I have two interesting stories to share about my kidlets' names. Each of them ended up with a gazillion nicknames, with Nissa having more simply because she lived longer and I just kept adding to them through the years, as inspiration struck me.
Firstly, similarly to you, while Sabin didn't seem to dislike his given name, I just felt/sensed that he preferred two of his nicknames, as did WE.
I was more prone to call him "Boo-Boo" more often than not, and his Daddy usually called him "Bud". There was just something about the "B" names that suited him so well, for whatever reason.
However, in 2 different sessions with my first communicator (the best one of all), I asked the same question for each of my kids - "What is your favorite nickname of all your nicknames?"
For Sabin, she told me there was one nickname that she couldn't quite get, but it was the one where, when I used it, my eyes crinkled all up and I emitted a totally excited, exuberant feeling, and I immediately knew which one she was talking about. It was "UUUUUUUUUberCAT!" (said with a roll of the tongue), which I'd burst out with while we were playing Sabin's all-time favorite game of Hide & Seek in the tall grasses across from our home. It never failed to really 'rev' him up to even greater heights of kookiness! So yes, talk about body language, and then some!
With Nissa, this same question yielded a most amazing answer. My communicator was sounding a bit tentative, struggling to hear the name correctly. WELL! She needn't have worried she'd get it wrong! She said, still tentatively, "Ummmm......something like.....
Peepsi????" I couldn't have BEEN more thrilled! She was only ONE letter off. I used to often call Nissa "Peepski", one of a number of variants on "Pee-Pop"!!! And don't ask me how I ever came up with "Pee-Pop" in the first place - it was just something that SUITED her and her ways...how I got any of their nicknames.
So it was in that moment that I knew for SURE that they do, indeed, favour certain names, whether that be their given name or a nickname! Unfortunately, Sabin was 'gone' by then, so he didn't reap the full benefit of this lesson, but at least I
had used his favorite quite often, seeing as it was obvious he liked it so. But from then on I felt confident in using my own 6th sense to call Nissa whichever name came to mind, depending on the energy of the moment, whilst also making sure to also liberally use her favorite nickname more often.
But the whole idea makes complete sense anyhoo, seeing as they're just as sentient as we (or any other Being) are, and don't WE either like or dislike our own name(s), too? Or favor one variant of our given name? Or even use our middle name instead cuz we don't like our first name?
And yet, some people name their kidlets the absolute WORST, MOST INSULTING names in the book! Former friends of ours named their cat such an awful nickname, I refused to call him by that, and would use his original name instead (which also didn't seem right, either, mind you). I called him "Blue", while his people called him.....ugh...."S**thead"!! I tried to explain this whole concept to them, but they wouldn't take it seriously. And yet, the REASON they gave for calling him that (even though they seemed to say the name with some affection), was "...because he IS such a little s**thead!" Meanwhile, I knew he was just living DOWN to his name. Poor guy. And frankly, he was just being a CAT, and not doing anything 'on purpose' to tick them off. They just had NO understanding.
Hope you also can read Nedda's other stories, too, as they're all worth it.