Per the book.
“the official manual for exorcists emphasized as strongly suggestive the following three signs:
1. the ability to speak an unknown language,
2. the awareness of hidden knowledge, and
3. various abnormal physical signs, especially immense strength, but also humanly impossible bodily “movements,” extreme contortions, and even the rare levitation.
All these classic features are not always present, but they recur often enough in serious possessions to serve as helpful diagnostic indicators.”
My formatting...
Very good point..
“Truly possessed individuals do not engage in “thought reading” at all; they are merely fed information by spirits themselves.”
I have found this to be a very true statement.