In order to listen to God's silence we must escape the din of distractions that normally deafen us to it. Being deafened to the silence within as well as the silence without is corrosive to God-hearing. To be silent is to so empty oneself of the din of transitory distractions that one becomes fully receptive to the silence that always and everywhere underlies them. Silence is that state of spiritual sensitivity in which seekers make themselves available to the silence of God's voice.
A contemplative practice is any act, habitually entered into with your whole heart, as a way of awakening, deepening, and sustaining a contemplative experience of the inherent holiness of the present moment. The critical factor is not so much what the practice is in its externals as the extent to which the practice incarnates an utterly sincere stance of awakening and surrendering to the Godly nature of the present moment.