The first thing I would do is get a dog =)

Besides that - download some audio books and go for a walk if weather is nice. Or just walk around and think, that's awesome.

Join some clubs related to your hobbies. Try Toastmasters or Improv or Stand Up, or play Go.

Gym, running, exercise. Biking.

Go outside and pick up girls. Write a book or blog in your free time.

Or if you are in a big city - find a hackerspace nearby.