Using edging techniques, the rider can move outside of the wake or cut rapidly in toward the wake. Jumps are performed by riding towards and up the wake and launching into the air. This can also be done by riding up a kicker (a jump). There is also the slider (a rail bar) in which a rider approaches and rides along keeping his balance. Once a rider improves in the sport, he or she can progress to tricks high in the air. As the rider edges towards the wake against the pull of the rope, the rider builds pressure against the water on the bottom of the board and gains speed and momentum toward the wake. When the rider rides up the wake, the energy of the wake launches him airborne. While in the air, the rider attempts to do tricks. Tricks vary from beginner to advanced.