Bonjour,
The trick. The magician is named John, he might painting a bunny and when he stops, the bunny on the paint might disappear and (je reconnaît pas le mot, désolé!) in John’s hat. John and his assistant are very surprised and happy, because John might have not imagined that. After that, they probably will play that trick in front the public on the scene and John would maybe like to demonstrate the new trick. When they will show the trick, the public will be surprised and happy at the same time and John and his assistant will gain a lot of people for the next shows.