You can tell other community members as much or as little about yourself as you want. You can enter a short biography, your location, your interests, or anything else (within community guidelines, of course).
To tell other community members about yourself:
Sign in to your community account.
Go to My Settings > Personal Profile > Personal Information.
Enter information about yourself in the Biography field. You can also enter your name, location, company info, and any other information you want to share.
By default, all community users can see this information. To display your info only to people on your Friends List:
Click Preferences > Privacy.
Set show private information in profile to to friends only.