Nothing you have to do for it. Just accept it. Now at the beginning I said that I would ask you two questions. Well I am adding my E-mail to the bottom so you can send me your answers. If you have no Bible contact me and I will get one to you.
Okay lets go back to the free gift.
God knew that we couldn't save ourselves. And he also knew, that some would try to. And they Bible tells us that none can go the Father but thru Him. So if you want to go to heaven you have to accept Jesus Christ as your Savior. If thou confess with your mouth, the Lord Jesus, and believe in thy heart that GOD has raised him from the dead thou shalt be saved.