We should be good to one another. People should be able to tell good about us. We should always add to people's life in positive ways and not to subtract. When we do good to people God is pleased with us.
We do not do good to people because we are expecting anything in return. We do good because that is what God would want us to do. We should come to the point where we treat people the same way that they would want us to treat them. Nobody would want to do anything bad or anything that would hurt himself.
Matthew 7:12 KJV
Therefore all things whatsoever ye would that men should do to you, do ye even so to them: for this is the law and the prophets.
If we can't do to ourselves bad but good then we should do the same to others. Even though they may treat us bad, as christians our should not be our attitude to repay evil for evil. That is what people of the world believe, but not for us believers. We do not reciprocate such energy.