Thank someone

You can also leave your caps lock on and write in a bunch of different languages, if you think they’d like that.

Write thank you notes/emails/tweets to people who don’t expect them.
You’ll improve other people’s day. You’ll be more grateful, less inclined to miss the miracles around you, less likely to ignore the good in your life.
Also, as a byproduct, you’ll get a constant stream of lovely messages back. Sometimes your heroes will write you back. Pretty cool.
It’s worth doing regularly, juts set a reminder for every week.Every day if you’re ambitious. It doesn’t take any time, just thought and gratitude.