Newbie guide/Quests
Quests designate the main objectives in World of Warcraft. They present story, gameplay directions, and rewards for your character, like money and experience.
Quests are usually obtained from NPCs, but they can sometimes be added to your Quest Log directly, or be attached to an item.
You can identify quest giving NPCs from the ! over their head. Talk to the quest giving NPC to learn more about the quest, then click "Accept" at the bottom of the window. The giver of a quest you are currently working on will have above their head a silver ?. When you complete the quest by meeting its requirements, the question mark will become yellow ?. These symbols will also appear on your mini-map to help in navigation and discovering new quests.
It is wise to read the quest information — It will almost always tell you where to go in order to complete the quest objective. Keep an eye on your map and mini-map as well for blue-marked areas, as those contain the location of the objective.