Instructions
Walk or get a ride to one of the zones meant for characters your level. Alliance characters should start in Bloodmyst Isle, Darkshore, Westfall or Loch Modan. Horde characters should start in Ghostlands, Silverpine Forest or Northern Barrons.
Pick up quests from nonplayer characters marked with a yellow question mark over their heads. Complete each quest given and turn it in to the character with a yellow question mark over his head. These quests will send you to new areas as your level increases.
Use the dungeon finder located at the bottom of your screen once you reach level 15. The dungeon finder looks like a green eye and will allow you to get in line for a dungeon and automatically transport you there and back once it is your turn.
Complete any quest given during your time in the dungeon. These quests typically offer a large amount of experience.
Choose a gathering profession as soon as you can. Each time you pick a flower, mine a node or skin an animal you will gain experience.