High-quality scanning involves a simple math equation. Count who asks the questions. If you have asked 10 biographical questions and they have asked 1, the scan is negative. Do not pass go. Do not collect the dopamine.
Romance manga like Love Junkie rely heavily on emotional dialogue, internal monologues, and comedic sound effects (onomatopoeia).
After a date, you don't feel the need to call your friends to decode their behavior. You don't need a second opinion. The connection sits quietly in your chest, like a satisfied meal, not a frantic sprint.