You basically want to avoid turning people off so they’ll continue to learn more about you.
Your picture, gender and age are the most important elements of your dating profile, followed by your username, location and interests.
This is your chance to name and brand your product: you!
Do you like the color purple, dinosaurs, candy, will go a long way. Consider school mascots, your town, or other things relative to where you live and what you are about.
Jot down a few of your favorite things and consider your job or career aspirations, favorite foods, celebrities, sports teams, movies... However, be very careful not to give away too much information.
Not only will this new moniker become tied to your online identity, it will affect other people's perception of you, much like how your hair and clothes might during an in-person meeting.
Your handle might even affect the results of your job search or dating profile if it refers to something racy or inappropriate.