Select a domain and click change account.
Enter the information on the right.
Make sure that the email address is accurate, as that is the email address that will receive notification, and a link to accept the domain push.
After that, it's all pretty much done.
Take note: If you push a domain to another account, you have to wait sixty days before you can transfer the pushed domain to another registrar.
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On the receivers side:
They will receive a email asking if they wish to accept the transfer. They click the link, enter their username/password, and click a few buttons saying that they accept Godaddys terms, and has to go through a checkout process, which is free.
Then, the domain should be successfully in your account.