Instead of obsessing over day one, watch how value accumulates across three lightweight checkpoints. Write a single sentence for each cohort describing why they returned or left. These narratives, paired with a few rates, reveal momentum, fatigue, and teachable moments for onboarding.
Name each step in the language your users use, not internal jargon, then observe hesitations and retries. Add one instrumentation event per step to validate your notes. Most fixes are small copy, clearer defaults, or forgiving errors that unblock progress without heavy engineering.