How to counter backbiting

Some people like to talk bad about a certain person behind his back. He will dwell on the weaknesses of that person without realizing that as human beings we are not infallible. According to the teaching of the Buddha, the best way to counter such person is talk good about him in front of others. By so doing, we will make him feel ashamed that he has scandalised you and yet you are so kind as to praise him instead.
The next he is with others, he will not resort to backbiting again. It is a case of kindness begetting kindness.

Actually, we should see the good of others and rather than his weaknesses. If everyone can do this, there will be no squabbles among the human kind.