With this color changing silk you start your performance by introducing a magic word. You show the black and white rabbit silk and introduce your word. At birthday party shows I use the name of the birthday child. I get all the kids to shout "Happy Birthday Johnny." After a few times each getting louder, I snap the silk handkerchief and it instantly changes color. I tell the kids, When you say the magic words you never know what is going to happen!" Very Easy to Do.  Bright Colors!