How should we treat other people? Jesus says to treat them better than they expect. Give them the opposite of what "they deserve." Love your enemies? Bless those who curse you? Who does that? Jesus did! He expects us to follow His example. He makes it possible for us to follow His example by filling us with His love and with the Holy Spirit.
It is a simple "rule" but not so simple to follow. Treat people the way you want them to treat you.