It's our nature to overhear phone conversations

I read about study week ago from some magazine, about how people naturally start guessing how conversations go, if they hear only one side of conversation. So, nowadays this means that you will more likely notice someone talking to the phone than someone talking to person next to her.

After reading this one, I've really noticed that I at least behave just like that. My brains tends to guess what people are talking about, when I hear someone talking to the phone. That's just funny. If you pay attention to this, you probably notice the same.

I think this gives us right to overhear phone conversations.

I just hope I would have taken note which study it was and where it has been made. It would be nice to dig bit more on it.