Try making the Earth spin forwards, and then backwards, and then forwards again. If you spin the Earth too far forwards -- and if you lacked the scientific background to fully comprehend the original Superman movie, then you'll have to trust me on this -- then the subject will be propelled forwards in time past the instant when she no longer finds spinning globes interesting. If you spin the globe too far in the other direction, she will be returned to her initial bored state. So you've got to keep her locked into that narrow range. Don't forget to compensate for the normal passage of time with a slight preponderance of backwards spins.