At this point, any person entering the room will be more than willing to agree that subject is a duck. This reinforces the trance. This is just a small sampling of the routines commonly used. Almost anything will work, providing the subject is willing or sensitive to subtle threats. First hand descriptions of what it is like to be in a trance condition have yielded little helpful information.
Most people compare it either with falling into a deep sleep, or being wide awake the whole time.
As has been noted, the experts do not concur.