The level cap
that you can hit will depend on whether or not you've bought
all of the expansions.
To gain experience you can complete quests, dungeons, or
battlegrounds.
Here I created a human hunter and entered world.
Clicking on the NPC with the exclamation point will open a
quest.
Oh look, a quest! Aceept it! And do it!
Now keep doing these until you hit max level, and queue for
some dungeons too!
