“Play is not the default mode of life; seriousness is.
It seems to me that some people’s default mode is in fact indifference. Others default to bemusement or to anticipating the next outrage.
Practice: Identify your go-to state, then jazz it up. If you tend toward suspicion, explore paranoia. If your default state is pleasure, try delight.
Play with being more of who you are already.
Related practices: The Fun Factor