Following Jesus involves more than simply accepting Jesus as your Savior via some prayer of commitment, no matter how sincere that prayer might be. In order to follow Jesus you must also emulate him, using his life as a pattern for your own. We call this emulation becoming a "little Jesus."
When we call ourselves little Jesuses, we aren't claiming to be able to walk on water or die for the sins of the world. No, being a little Jesus means that we adopt the values embodied in Jesus' life and teaching. Only Jesus was able to feed thousands with small amounts of bread and fish, but as little Jesuses we can embrace the values of hospitality and generosity. We might not be able to preach to the multitudes, but we can commit to speaking truth to lies. We can't die for anyone's sins, but we can embrace selflessness, sacrifice, and suffering.
We hope to see a conspiracy of little Jesuses unleashed all over the world, transforming their communities the way Jesus transformed his.
From: ReJesus: A Wild Messiah for a Missional Church, by Michael Frost and Alan Hirsch (Peabody, Mass: Hendrickson Publishers, 2009), page, 6.