Off the line, without speed burst, instantly juke right then left. The CB will be fooled. Speed burst, run a 45 degree angle to the center of the field, and call for the ball. Either the CB will be far away or he will be behind you, and you will catch it almost every time usually for an easy touchdown. This also works during games but it takes some of the fun out of running routes. Instead of right then left, do left then right and catch the ball running up the line for a big gain.