'Seeds' are a string of text and numbers that Minecraft uses to generate a world. So it controls all naturally-appearing terrain. Herobrine is added by a mod, there's no 'seed' for it, that's not what seeds are for.
walk in it
If you kill the wither, you get it. It has only one recipe, which is the beacon. To craft it, you put 3 obsidian blocks on the bottom, then the nether star in the middle, and glass (not glass pane) on the rest of the spaces. There is also a server called The Herobrine, which the shard is the nether star.
No, since there's no way to mod the PE version, you can't install a Herobrine mod.
You don't need a sign. All you need is gold blocks, redstone torches or redstone, mossy cobblestone, nether rock, and flint and steel.
No. There is no Herobrine in Minecraft.
You have to go to the nether. When people talk about connecting two places on the overworld with portals, they mean you enter the nether through one portal, and exit through the other, but the distance you travelled through the nether is much shorter than if you tried to walk from one of the overworld portals to the other.
Herobrine is a misnomer because the first 2 syllables is "hero" and Herobrine is'nt a hero, he's actually a villain. Brine is the short form Herobrine.
Whichever Herobrine mod you are using will say how to make Herobrine appear and what you can do what he does, each mod will be different.
Herobrine is not a myth! He is real, I have seen him before! And he is not evil either! When will people get it right!
No, Herobrine has never been in Vanilla and is a fictional mob. There are mods, however, that put Herobrine into the game.
Herobrine was never in Minecraft. It was just a joke from Notch. He never had a brother named Herobrine.