This was an unexpected but cool encounter! I was at a park walking past when i heard dry leaves rustling nearby and looking around for a sec i found him. It he hadn’t moved i don’t think i would have seen him! He was looking right at me. I slowly got closer. He froze and we just stared at one another for a minute and then he stuck his tongue out to me as a warning. Eventually he slithered off, disappearing once again underneath the dry fall leaves.