So, here are some of the leveling tricks for XP boost that I have learned using one of the best WoW Alliance leveling guides.
1. If you're going to start a new character, no matter which race you choose, it's best to travel to Elwynn Forest and start leveling there. Maybe for the Worgen things are a bit different, since quests, trainers and all NPC's can easily be found in their starting area, but for any other race, it's best to quest from 1 to 10 in Elwynn Forest. The zone is much more accessible and friendly, Stormwind City is close by and you can fly there any time.
2. If it's not your first character, you should invest some Justice Points in Heirlooms with XP bonus, like the torso and shoulders. These two item pieces only will grant you a 20% XP bonus. That means, you will level up 20% faster.
3. If you're going to use a leveling guide, you're going to be always pointed in the right direction, once you finish up with one zone. But if you won't, never choose a zone that's 2-3 levels higher than the level of your character. I know, XP from quests and monsters that you will be killing will be better, but there will be higher chances for you to die. And dying while leveling sometimes can be time consuming. For example if you have cleared a whole cave and you wipe at the boss, the resurrection point will be most definitely outside that cave, and you will have to clear it once more. Grinding on mobs is a waste of time and XP, in general.
4. Never waste your gold on gear. Save each and every piece of silver and gold for your Expert, Artisan, Cold Weather and Azerothian flying skills. These are the most important investments that you must do while leveling up a character, Alliance or Horde. These are speed enhancements that you need. Also, flying from zone to zone, flying over major obstacles like peaks or plateaus, or flying past major camps of mobs will save you a lot of time.
I hope these tips help.
However...
The most important thing that any of the best WoW Alliance leveling guides can provide you with, is the condensed and optimized leveling path. Plus, the in-game guide that World of Warcraft comes with is pretty much basing and most of the times, ambiguous. WoW Alliance leveling guides are very explicit when it comes to quests and you will know exactly what to do right away, the exact coordinates where you must go, so you won't waste even a second trying to figure out the trickiest quests.
