When creating a username, it is best to avoid the obvious. This means staying away from simply stating who you are or what you do and creating a username that communicates your personality instead of facts. A common way to do this is through the use of humor and puns.
With millions of people making profiles online, a unique username can help you stand out. However, before choosing a username, it is important to think about the context of your online profile. If you are making a profile for a professional site, such as LinkedIn, it is best to use your full, real name, as it helps potential employers find you and avoids confusion and embarrassment. However, when creating a username for a blog, online community or other nonprofessional profile, you can give your imagination free reign.
A good fact to keep in mind when creating a unique username is that your username is your first impression with others online. It should speak to your personality and skills, such as "puckhead" in a hockey forum. Some usernames also act as puns or jokes within the context of the site, such as "ImACompleteCyclePath." You can also use symbols and numbers to differentiate your username from others. This is a good idea if your first choice of username has been taken.