You could begin to notice whenever you find yourself blaming others or justifying yourself. If you spent the rest of your life just noticing that and letting it be a way to uncover the silliness of the human condition-the tragic yet comic drama that we all continually buy into-you could develop a lot of wisdom and a lot of kindness as well as a great sense of humor.
If your mind is expansive and unfettered, you will find yourself in a more accommodating world, a place that's endlessly interesting and alive. That quality isn't inherent in the place but in your state of mind.