How we judge others will determine how we will be judged. If we really believe tha, then we have a method that can a guarantee merciful judgments toward us. When we judge others, we can try to focus on the good in them. We can have patience with their mistakes. We can seek to help them overcome their weaknesses. We can love them in spite of any possible faults we see.
If we judge others with humility and charity, we can expect to receive the same type of judgment from heaven.