There's a reason why the quote "Experience is the best teacher" carries so much value and meaning. The only way for you to really prepare for Monster Hunter: World is to expose yourself to the franchise, and play any of the older games to experience hunting ferocious beasts firsthand.
If you happen to have older consoles like a PSP, 3DS, or WiiU, pick any of the Monster Hunter games and give them a try. If you don't have any, watch gameplay videos on YouTube to better understand the game concepts and mechanics. Watch weapon tutorials, explanations on various things, the hunts, and so much more to enrich your understanding of this franchise.
Also, a playable demo is coming out on December 9, exclusively on the PS4. So if you are a proud owner of the Sony console, be sure to try out the demo to not only experience Monster Hunter itself, but the game that you'll most likely be playing in January.
If you are a veteran player, what other advice and tips would you give to newcomers? Be sure to share your advice and stories down in the comment section.