Log into the admin page, buddypress tab, click the “Profile Field Setup”. On the page that appears, you can set any field you want to display on the registration page.
Hopefully helpful. 
Hi, katemgilbert, in more detail, after login, you go into http://sitename/wp-admin/admin.php?page=bp-profile-setup. And then, you can customize the registration and profile form that you want.
Thanks for the info!
Would you know how to remove the “username” from the signup form though?
Thanks
@osasko:
I think, “username” field can not be deleted, because it’s default.
@osasko, do you use the email login plugin? You can’t get rid of the username entirely, because WordPress is built around it, but you can autogenerate a username and hide the input field on register.php by adding type=”hidden”. It’s an ugly hack…
Also, just so you’re aware, the username is what your member profile will be based off of. i.e. your member profile link will be blah.com/member/username. Even if you change your display name, when someone goes to the link, it will still show the username.
Thanks guys.
See what you mean : website/members/username
Suppose it would be better then if users just pick there own usernames, as they can then easier remember it.
Actually i want add fileds in blog registration form.So add tow fields Music Genre and Country
fields using buddypress .After that i created new signup. Except above two fields values all values are saving the wp_signups table .But how to save the Genre and country values.
Kindly give me as suggisions.
Hi all,
I installed PHP-EXEC plugin for to execute the php code in the blogpost and pages.
Still iam not able execute the php code .Any once could help me for this problem,
Yudhister.K
@ yudhister, before you install 1000 plugins to have what you want, read this:
https://buddypress.org/forums/topic/how-to-add-custom-usermeta-to-registration
