To change your username which is also your Behance URL:
- Click on the 'Me' tab at the top right of the page and go to "Account Settings"
- In the top section under "Account Information," click "edit" under "Behance URL" and choose a new URL
- Click 'Apply' when you're done
NOTE: We suggest keeping professionalism in mind, as you'll likely be sending your Behance Profile to potential clients and employers.