Thank you so much! I'm glad you like my games.
I use Unity, it's great for 2D games, especially with this kind of style, I just use basic animations (kinda like a flipbook of images) and there are plenty of tools you can download to help with point and click style, if that's what you're going for.
You're right, the café is like an interface, the stories the three people are telling aren't necessarily about them, they may be a story they've heard or made up.
Your screenshot looks excellent!