Its a little silly but I do enjoy those little things they add to a game that don't really add much in terms of gameplay, heck you're even able to play the game without making use of them, but are a nice way of sort of just "grounding" yourself in the world for a time, giving you some time to pause and reflect a little on whats been happening.

Stuff like pulling out a guitar with Into the Radius and trying to strum out a lil beat or stopping in at a diner in Shadows of Doubt and having a little coffee and watching the world go by while mulling over a case that you're on. I think that kind of stuff is pretty rad.