We are called by the Father to Christ. We then repent which is just turning from our way to the way of the caller. If we choose to, we then take our first step of pisteuo or Faith, faithing towards God.
What that first step is, is a genuine, personal, surrendering of our lives to Him," Christ ". Believing, that He will accept the surrendered life, we make decisions throughout our day, that show God we really have given our life and will to Him. That it's not ours anymore but His now!
This exact surrender, if we continue to choose to do so, is done in exactly the same way every day. Each day our surrendered life is being perfected by Him. it's not about a perfect surrendered life, but must be a genuine one. A half measure will avail nothing. Expecting something in return, which is kind of natural for us, will slowly fall away. We will begin to have a real personal relationship with Christ. He will secretly be perfecting our surrendered life to Him, and He will respond in secret to us.
Eventually, if the surrendered life is tested and accepted by God, He will seal in the Spirit of Christ making Christ, His word, and the promises in His word ours to compare to. His word becomes like a reflection of others who have surrendered their lives before us. We will see the reflection of our surrendered life in His world