For the Horde

• 1). Go to the Valley of Honor in the Orc capitol city of Orgrimmar. The Valley of Honor is in the northeast corner of the city, and accessed by a road leading off of The Drag, which connects the Valley of Wisdom with the Valley of Strength.
  
  
• 2). Keep to the right as you approach the first bridge in the Valley of Honor, and go up the ramp leading to the Hall of the Brave.
  
  
• 3). Go up the stairs in the back of the Hall of the Brave, and then go up the spiral staircase in the next room.
  
  
• 4). Go to the back of the room at the top of the stairs. You will see a stealthed NPC named Slahtz. Right-click on the NPC to talk to him. Click on "I no longer wish to gain experience" in the chat window.
  
  
• 5). Click "Accept" to pay the 10 gold fee and your experience bar will disappear.
  
  

For the Alliance

• 1). Visit Stormwind Keep in the human capitol of Stormwind. The keep is located in the northeast corner of the map, and you can access it from the edge of either Old Town or the Dwarven District.
  
  
• 2). Run up the steps leading into the keep and continue until you reach the throne room.
  
  
• 3). Turn right once you are in the throne room to access the war room.
  
  
• 4). Go to the back of the war room and find a stealthed NPC named Behsten. Right-click on the NPC to talk to him. Choose "I no longer wish to gain experience" in the chat box.
  
  
• 5). Click "Accept" to pay the 10 gold fee. Your experience bar will now disappear.