This trick is pretty simple but it can take a little while to master. All you need to get it done is a hat, around 10 audience members, a pen, a slate to write your prediction on, and as many scraps of paper as you have people. Here is what you have to do:
Ask an audience member to should the name of a famous person.
Write the first name down on a scrap of paper and throw it into your hat.
Ask the audience to keep shouting out names.
Pretend to write each name down, when really, you will just be writing down the first name, over and over. This is the part that takes practice.
Once the hat is filled, ask an audience member to volunteer to help you.
Say that you will predict which name he will draw out of the hat. Of course, you will predict the first name. Write it down on the slate so that everyone can see.
Have the audience member reach into the hat to pull out any scrap. Since they all say the first name, lo and behold, you have correctly predicted the name he would pull out!