Okay, so it's a run in Minecraft. All you need to do is instead of tapping W, you double tap W and hold it. Simple enough. If you want to run faster, you can take an awkward potion, put it in a brewing stand, and give yourself some sugar. Then take those awkward potions, put some sugar in them, and then your awkward potion will turn into a potion of swiftness. And if you want, you can put a piece of redstone in there and it'll make it last longer. If you don't want it to last longer, you can put some glowstone dust in there, and it'll make you run even faster. But I have redstone, so I'm going to put some redstone in there. So take that potion, drink it up, and now you can move even faster. But, say, you change your mind and you do want it to be stronger, you put some glowstone back in there, and then you get a potion of Speed 2. So now you run nice and fast.