Can You Prove That You Are A Christian?

Jesus, before He went back to His Father gave the commandment to all of us through His apostles that we must love each other the way He loved us. It means we must do everything to show our love for each other. Even if it will entail suffering and death, we must continue to love the way He unconditionally and consistently loved us by suffering and dying for us while we were still sinners.
This commandment of loving one another and the way He loved us is our entry to heaven. It is our identity. It is our symbol. Christians would be known because of the way they love each other. Though other symbols like uniforms, badges, emblems, motto, certificates, and other human symbols are important in the initial recognition of a Christian, Jesus meant for us to show it by loving. The essence of being a Christian lies not in the externalities but in the living of the faith.
Did you know that our faith is so beautiful that great men of other religion are very attracted to our Lord Jesus Christ? However, we, His followers, are not being good witnesses to the teachings and life of our God. They like Christianity but not the Christians. Picture this, when you meet St. Peter in heaven's gate and ask you to prove that you are a Christian, can you prove it?