Bass fishing 100% or people watching. Literally I urge you to go to a public park in the middle of the day/during peak busy times and just watch people. Keep your phone in your pocket and just WATCH, LISTEN, AND ANALYZE. It's truly fascinating especially for someone like me with a degree in communications. I can pick up on tendencies and analyze patterns in non verbal cues and sense tension very well if there is any between the people associating together. It's truly something I find peaceful and enjoyable. Also, it's fucking hilarious sometimes.