Crucial to how we feel is being aware of how we are feeling in the moment. The sine qua non of that is to realize that you are being emotional in the first place. The earlier you recognize an emotion, the more choice you will have in dealing with it. In Buddhist terms, it's recognizing the spark before the flame. In Western terms, it's trying to increase the gap between impulse and saying or doing something you might regret later.
Paul EkmanIf a person feels terrible, it usually should not be shown or acknowledged during a greeting exchange. Instead, the unhappy person is expected to conceal negative feelings, putting on a polite smile to accompany the โJust fine, thank you, and how are you?โ reply to the โHow are you today?โ The true feelings will probably go undetected, not because the smile is such a good mask but because in polite exchanges people rarely care how the other person actually feels.
Paul Ekman