How do you counter Body Double?

Body Double creates a decoy replica of your cells that keeps moving in whatever direction you were last heading — and I keep seeing players juke entire fights with it. The tell, in theory: the decoy never changes course, and the real player has to steer eventually. In practice, in a messy fight with auras and projectiles flying, I still pick wrong about half the time. What actually works for you? Holding your shot until one of them turns? Tagging both with a Frost Shot or Poison Shot and watching which one reacts? Or just committing to whichever is closer to escaping? Curious whether the high-level answer is game sense or a specific skill pick.