Understand the move. The Reject is a backwards version of a popular '80s dance, the Running Man. If you aren't familiar with it, watch Vanilla Ice's "Ice Ice Baby" video. Seeing the forward motion will help you understand the steps better when you put them into reverse.
Learn the steps to the Reject. First, step with your left foot. Then lift your right foot up and let it fall back behind you as you jump. As your right foot hits the ground, lift your left foot and let it fall back while lifting the right foot again. Continue repeating these steps until the Reject portion of the dance is complete.
Turn on some New Boyz music and practice the Reject.
Watch dancers perform the Reject. Jerkin' has taken the Internet by storm. According to Eric Ducker of the L.A. Times' Music Blog, Action Figure$, U.C.L.A. Jerk Kings and Go Go Power Ranger$ are among the dance crews that increase their visibility by posting videos of themselves jerkin' online. Whether you live in Los Angeles or Boise, Idaho, these videos make it easy to learn the dance from experts. Watch different dance crews jerkin' and pay special attention to the way they do the Reject. Based on what you've learned, modify the Reject to make it your own.