How to add a new row to the registration form? I'm using LoginToboggan module. Via this module user can register or login.

And now I want to add another row to this form. For example: Phone number or Age. 

How can I achieve this? Or is there another way of achieving this?
Without using LoginToboggan also you can achieve you requirement.


Goto Configuration > Account settings > Manage Field and then add field.
In field configuration Display on user registration form checkbox.