Landlord fight many times is the player's mentality, players more attention to the opponent's facial expressions and some body movements can be seen some clues, at this time "observation" skill can be used.
The idiom "observation" comes from "the Analects of Confucius Yanyuan": "those who are smooth, straightforward and righteous, observe others' words or complexion, refer to guess others' intentions. After grabbing the cards, there are only three bottom cards left. The ping family can observe the actions of the landlord when he grabs the bottom cards. Generally, those who grab the bottom cards without hesitation can see that the landlord's cards must be good, because the cards in hand are good and have the backbone, so they are not hesitant when they are landlords.