"How, how" is in Kim's title. People who search for such keywords have an obvious feature that they don't understand. The needs of such groups are urgent and the goals are clear.
"Collection and Inventory" in Synopsis of the Golden Chamber. This is mainly to meet the deeper psychological needs of users, that is, saving time, being afraid of trouble and giving immediate feedback.
To be no.1's "fear, negativity". Such headlines usually take advantage of people's fears.
The golden number of the golden title. A good headline must contain a core element: numbers, because numbers represent intuition and commonness. More importantly, people can make decisions without thinking, which greatly reduces the decision-making cost of users.