-Learn a new language.
-Learn a musical instrument.
-Read a lot.
-Play chess in the park.
-Participate in local 5k races or whatever distance.
-Learn how to barbeque really well.
-Sit on your front porch and people watch.
-Sit on your front porch and read a newspaper.
-Ride your bike a lot and talk to strangers more often.
-Become the mayor.

If work permitted, I'd prefer to live in a small town.