Your initial Knockdown profile is created during the sign-up process.  You can add additional information to your profile by selecting My Profile from the main menu.  

Add a profile picture, a cover photo, and your City and State to help your friends find you.   We have a lot of people named Bob Smith in our community, but not very many from Paducah, Kentucky.  Besides, we've made the default profile photos pretty pathetic so you won't be tempted to use them!