I've found myself, for years, when transforming a toy for the first time, to ensure that the head is the very last part to be transformed, because then the figure seems "real". Also, when applying stickers, the Autobot / Decepticon chest sigil is the last one to be applied, fopr the Rite of Autobrand / Deceptibrand.
Don't have any rituals like those, but, mine the characters of my TFs have very well established (within the mind of Shockprowl) ways of acting, friends, rivals, loyalties, etc. For example, Prowl, Jazz and Wheeljack are a little team that go off and do stuff. Jazz has quite a rivalry with Ravage. Bumblebee, Ironhide and Ratchet tend to hang out with eachother and they're Optimus's chaps. So nothing out of the ordinary, but I stick to these characterisations like glue.
I was the one who let you know, I was your sorry ever after, '84, '85. Give me new toys and I'll decide, but I'm really only after, '84, '85.
Also, when applying stickers, the Autobot / Decepticon chest sigil is the last one to be applied, fopr the Rite of Autobrand / Deceptibrand.
I used to do the exact same thing!!
My main ritual was this:
Since I never had very many Transformers, and followed the comic stories religiously, I set my own adventures in the far future where *all* the Transformers had been put into stasis and every so often (like a trip to the toy shop) I would take an existing Transformer (usually Bumblebee) with me and upon arriving at the toy shop I would pick whichever one was in "stasis" to be revived/freed when I got home.
Oh, and Bumblebee had to stay in vehicle mode on the bus (AKA Interstellar Transport) as the bus driver (AKA Ship's Captain) wouldn't allow Transformers on the bus (AKA Interstellar Transport).
Back in the day, I would always read the tech spec first before opening the package. After the toy was transformed, the tech spec and character art would be carefully cut from the packaging and carefully placed in the relevant pile. The rest of the card would be binned but any styrofoam would be kept for a while to make 'bases' for the Transformers to hide in/defend/etc which would be steadily destroyed to replicate 'battle damage'.