Take great care to restrain your tongue and be circumspect. Let only discretion and charity open your mouth. And practice the advice of all the Saints to break silence only with words that are worth more than silence. Silence is one of the most certain signs that God dwells in a soul.
Compassion is an aspect of Divine love that melts all defenses and resistance when anyone's suffering is really seen. There is nothing the personality can do to create compassion, but when we are willing to be completely open and truthful about whatever we are truly feeling, it arises naturally and soothes our hurt. (We could say that truth without compassion is not really truth, and that compassion without truth is not really compassion.) The Divine love that seeks to express itself in the world through us is a powerful force that can break through all of the old barriers and untruths that have accumulated in us.