You are supplied with a realistic (fake) light bulb that looks genuine. Also supplied is a gold ring. The ring is a magnetic ring and looks like a wedding ring.
Wear this ring on any finger and when it is touched to the edge of the globe the globe will light up. Practice bringing up your globe to your mouth with the hand wearing the gold ring. As the glob enters the mouth for a few seconds - your make the connection with the ring as well. The illusion is that when the globe enters your mouth it lights up!
Want to keep the light on at all times? Buy a small earth magnet from your local hardware store and attach it to the light with tape to keep the light working and lit!