So what have you noticed when trying to guess who will be the man behind the monster or ghost mask at the end of the episode? Most of us know who they are by now, let's pretend we are watching the show for the first time. So what tells have you noticed?
1) What I have heard, most of the time, it is someone the gang meets early in the episode, and mostly the first person they meet.
2) What I have noticed, most of the time, it is the person that tells the gang the legend of so called ghost or monster.
You guys have any others you want to add.