If you stood in line for hours to donate blood in the wake of the Vegas shooting, you care about human life--even the lives of strangers.
If you had power during Hurricane Sandy and you threaded an extension cord and power strip out your front gate and left a note that anyone who needed to charge a phone or other device was free to share, you understand that even small contributions can make a huge difference to people in need--and you're willing to make those contributions.
If you immediately responded to the more recent round of hurricanes with donations to organizations working on the ground, you understand that providing relief to those in crisis is important--and you're willing to back that understanding with your wallet.
If you offered a place to sleep, or food, or water, then you don't like to see people hungry, thirsty and tired due to circumstances beyond your control--and you're prepared to do something about it.
Every day of your life, you'll encounter a person who is hungry or thirsty or frightened, a person who needs a ride or just an encouraging word. Every day of your life, there are people in the world whose lives could be changed in some small (or huge) way by a small effort or contribution on your part. Every day of your life, you will meet a person on the street (or in the grocery line or on the telephone when you're angry because your cable doesn't work) whose day can be immeasurably brightened or darkened by the way you speak to him or her.
Don't forget that. Let us see that person every day.