Your actions affect your life, and those of your family members and friends.
Their actions affect their friends, and so on. In this way, we can make the world immediately around us better or worse.
Honestly, how have your actions affected the people around you and the people around them?
Think on it.
When you are done, think about how you can do even better. What can you do today to make things better for the people around you (and ultimately the people around them)?