Press on people and objects to talk to them. That's basically it.
"You've been working on this for 4 years?" No. I started working on the prototype 2 weeks ago. I was inactive for a while until I was inspired by @Pciphidic's Anton's Complex (https://scratch.mit.edu/projects/521575980/) and Coolman (https://scratch.mit.edu/projects/549038500/) to start making games again on Scratch. This prototype is also inspired by the dialogue system in Riddle School 3 and Riddle Transfer and I tried to replicate the dialogue system from both games. The code isn't very good but in fairness, I was mainly focusing on making sure the game (sort of) functions rather than making an efficient system. Anyway, here's the second prototype I made that fixes most of the bugs/issues in this prototype: https://scratch.mit.edu/projects/555230542/
