I'm pretty sure you're asking how to pass the first mandatory practice skill. You have to run through all the defenders and score a try without passing the ball. Its hard at first because it took me a couple efforts, especially if you're not used to playing with the side camera. I find the best strategy is to run straight at the defense for a second and then break to the top of the field. There's usually a hole there you can go through, you just have to bend your run outside near the touch-line gradually until you out-angle the defenders. Whatever you do, dont forget to save your progress once you complete the training!!!