A Christian is someone who follows the bible, and the bible alone. Someone who believes that the bible is the infallible word of God, containing commandments we are meant to follow. Someone who, in fact, actually follows those commandments. To be a Christians also means that you believe JC is the son of God but also God himself (and through whom the world was created), being a part of the trinity, and that JC was born to a virgin, in a physical human body. That JC lived performed various miracles, knew he was going to die, and died in the literal sense as a sacrifice for sinful mankind, the "exchange" for our lives. A Christian is someone who believes JC resurrected according to the prophecies of the old testament and is in heaven right now. Christians believe in the holy spirit and his works. And finally, to be a Christian, you must be believe that JC died for your sins, accept his sacrifice as your own, and make him Lord over your life.