Instructions
Create a desktop shortcut of the "Dragon Age: Origins - Awakening" EXE file. The EXE file is located in the "Bioware" folder of your computer's program files, and you can create a shortcut by right-clicking the EXE file and selecting "create shortcut."
Right-click the EXE shortcut and click "Properties." Paste "-enabledeveloperconsole" (without quotations) at the end of the "Target" line.
Start the game and press the "Tilde" (~) key at the top left of your keyboard to open the developer's console.
Type "runscript chargen" and press "Enter." This will open the character creation screen and allow you to change your character's hairstyle.