I've had Tiger for several years now, and he's been a very shy puffer. He only comes out in the dark, and even then rarely if I'm close to the tank. When I feed him, he sometimes waits for the dark to fall before eating the food, sometimes waits for me to leave the room, or sometimes (but also rarely) zooms out of his hiding, snatches the food, and is gone again in a second. So: he's not a very sociable puffer. Until...
A few days ago, I had to move him. I had planning to do it anyway, but emergency made me jump into my long term plan. A tank started leaking! It was one of my 35 G cory tanks, and I had no backup tank to put the cories into. I had to look around where I could find some spare room, and the only place was Tiger's tank. He had more room than he actually needed. So poor Tiger was moved from his comfortable 32 G to a much smaller 22 G (and some cories moved the other way - together with them, I could squeeze in some of the homeless cories). I even had to nudge his tail to make him move into the box I was taking him out of the tank in. He wasn't very happy about it, and I don't blame him. Well, this was the story about the moving.
Tonight, after doing water changes on some of my tanks, I suddenly realized that Tiger was watcing me. What? Tiger was watching me, and the lights were still on!

I sat down and talked a little with him, and he didn't run away! He was all relaxed, but still curious about me. He even let me put my finger to the glass, right in front of him.

Wow, what happened to my very shy Tiger? He actually is more relaxed in less space! It's part of the story (and probably part of the solution) that he has more places to hide in his new home. But on the other hand, he can hear me (and my dog) trample past his tank all day (he's in the lowest row of tanks in the rack by the entrance), which I would have believed would make him more nervous. I guess he will never be as sociable as Hufflepuff was, but maybe I will have another interactive turgidus after all. I really miss having a "talking" turgidus.