Love one another. This is the greatest commandment of God to us. As the Author of Love, He gave this command because He wants us to have that Christ-like attitude wherever we will go.
It is also a challenge to love the unlovable. Admittedly, all of us fall short in the thought that we don't love others the way that Jesus did. He also instructed that we will also love our enemies and pray for those who persecutes us. It is really hard, but once we surrender this grudge to the Lord, everything will just follow.
Start spreading the love today. Let us follow the Author of Love. Receive and feel God's love in your heart and soul, that will be a start.