"I firmly believe in small gestures: pay for their coffee, hold the door for strangers, over tip, smile or try to be kind even when you don’t feel like it, pay compliments, chase the kid’s runaway ball down the sidewalk and throw it back to him, try to be larger than you are— particularly when it’s difficult. People do notice, people appreciate. I appreciate it when it’s done to (for) me. Small gestures can be an effort, or actually go against our grain (“I’m not a big one for paying compliments…”), but the irony is that almost every time you make them, you feel better about yourself. For a moment life suddenly feels lighter, a bit more Gene Kelly dancing in the rain."

Jonathan Carroll - purplebuddhaproject.tumblr.com 

I agree with this in many aspects.  I'd like to add pick up a piece of trash even if it's not yours.  The hardest time for me is driving.  Some people are just so rude when they drive.