Just like claiming the heroic reward for Dragon kills. Press the controller button with Windows a couple times to move over and claim the reward. The first couple times it will also give some power points to spend.
There will be a window on the right-hand side of your screen that says experience reward/claim reward-- I forget exactly what it says.
On your Xbox controller, use the "view" button (aka "back" or "select" button). The first time you press this button, it will highlight your portrait in the top left-corner. You keep pressing the "view" button until it highlights the window to claim your experience reward (approximately 3-4).
What Pentnoir said such be a dead give-away as to how you should proceed with this matter. If you have ever killed an open-world dragon, you would have had the opportunity to claim a heroic reward following this same process.
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On your Xbox controller, use the "view" button (aka "back" or "select" button). The first time you press this button, it will highlight your portrait in the top left-corner. You keep pressing the "view" button until it highlights the window to claim your experience reward (approximately 3-4).
What Pentnoir said such be a dead give-away as to how you should proceed with this matter. If you have ever killed an open-world dragon, you would have had the opportunity to claim a heroic reward following this same process.