Hypnosis bypasses your critical factor or also said that hypnosis bypasses your critical thinking.  An easier description of it would be that hypnosis temporarily takes away your yes/no factor.  This is the area of your conscious decision making where one decides whether one should do something or not. Hypnosis takes away your fear, thus the success of good stage shows being the subjects on stage perform with great confidence and create humorous situations where they would normally never take such chances.  When the subjects on stage are given a command, they just DO the command without thinking of it or the consequences of their performance.  The subjects sing, dance and perform in front of 500 to 600 people at times where normally some of the participants would never even get up in front of the audience let alone perform in front of them. This is where the true success of a hypnosis show lies within the fact that the Yes/No factor is broken down and the subjects act freely in front of the audience.   The subjects become these true performers that are completely focused on the hypnotist and his/her commands.  A great show is thus the result.