It is commonly considered rude to keep silent in the company of others, but voluntary silence connects rather than distances us from others whose individual differences temporarily fade away creating a shared feeling of harmony and oneness.
Nature is a sacred space that has the power to draw us out of our small mind into the one Big Mind of God. During warm weather, praying and meditating outside in nature can naturally enhance your practice. You can pray anywhere, even on the subway, but whenever you find yourself in a place that feels sacred, you have already made the connection with God.