Onboarding is more than just sign-up, it's a first impression, a silent tutor, and a behavioural funnel. Notion's onboarding journey is polished, pacing users through setup and customisation with clarity and calm. It smartly employs psychological tactics like progressive disclosure, effort justification and social proof to keep users moving. However, even thoughtful flows stumble. From too many early choices to a slightly anticlimactic ending, we explore the nudges that shape this experience, and where it could sharpen its behavioural edge.