Glass through Table. T. Nelson Downs Psychological Subtlety (magicians only)

Glass through Table. T. Nelson Downs Psychological Subtlety
Learn the Glass through Table first from the various Youtube videos, and then return here. Glass through Table. T. Nelson Downs Psychological Subtlety. This is for those who already know how to do the Glass Through Table trick. This added psychological ploy is almost never mentioned in any of the descriptions of the effect. Note: Try to use stronger paper for the cover, shopping bag paper is ideal.