The key to developing compassion in your life is to make it a daily practice.
Meditate upon it in the morning (you can do it while checking email), think about it when you interact with others, and reflect on it at night. In this way, it becomes a part of your life. Or as the Dalai Lama also said, “This is my simple religion. There is no need for temples; no need for complicated philosophy. Our own brain, our own heart is our temple; the philosophy is kindness.”