You want to be unique and stand out above the others. Choose a gamertag that will suit you the best. If you are in the hunt of cool nicks check out these steps:
1. Go to Gamertag checker
2. Enter the name you would like to use and press the "Check-Gamertag" button for availability.
3. You may or not find it the first few tries. Keep trying until you see it may be available, and when you do. Claim it!
Here is to go about it in your console:
1. Press the Xbox button to open the guide.
2. Scroll to the top of the guide and select your gamerpic.
3. Under Sign in, highlight your gamerpic, and then press the A button on your controller
4. Select View profile, and then Customize profile. Select your gamertag to edit it.
5. You can either select one of the suggested available gamertags, or select Make my own to create your own