If you mean an animated .gif, you add it exactly as you would add a photo or picture to your profile.
(See the Related question.)
By clicking on his or her's username.
it is the category you have been most active in.
You can reset your interests in Answers.com by going to your profile and edit it.
just search search friends on someone's profile page.
Yes, you can add your own profile and banner picture from your profile page.
It is listed on the right hand side of your profile page. When you first log on look on the left side of the home page and click on your profile.
To add a profile to your xbox 360 u just go to add a profile or make new gamertag its pretty simple
go to your profile then there will be a link that says add photos
no
You go to a profile, and on the left side of the page there should be a pink button that says "+ Add to Friends". You have to scroll down a bit to see it.
you just add the image to your name in edit profile.
You can't as far as I can tell, sorry.