You're the green dot. Use WASD to move.
This is just a concept. I found this concept from a YouTube video, explaining that second person is when the camera is outside of the player, and is inside or focusing on something else. I find this concept really interesting, since it hasn't been explored before. There's also examples of this effect being used in an actual three dimensional game, where it's used in a car chase scene. If you're still reading this, I guess kids on Scratch aren't so lazy after all. Good job.