The short answer is: They are quite rare.
A little more info if you wanted to know: With the schedule added there is no difference, but you can get to see them between 4pm-5pm (that is guaranteed)
But in general, they are still rare and to get EMO to do this, you needed to make sure EMO was not distracted, or interrupted, if the environment is very quiet, he will sooner or later play a game by himself. I spent a fair amount of time testing this out and shared a post / video a few months ago. I went into a lot of detail on how I believe it works, if you want, take a look at this video, BUT also check out the long description as well.
I did create a post about it here as well:
Take a look if you have time, this is my own personal experience with this.