If you have never done this, go try it.
Get a card or some pretty stationery, and write a nice note to someone. Someone close, someone not close, someone who did something awesome, someone who did something meaningful, someone who needs a pick-me-up, whatever.
Then mail it to them. Yeah, with an envelope and a stamp. I can teach you how to address an envelope if you need.
It feels good to write them. It feels good to get real snail mail—especially when it’s something nice and unexpected!
Seriously—go do it.
(I fall in and out of this habit. Just wrote one and helped The Kid write one.)