green flag

— As we stood waiting for the departure time with the setting sun twinkling on the great brass dome of our 2-4-0, the sound of church bells was the only one apart from the measured tread of the guard slowly pacing towards his van, and, standing at an open window, I more than once heard the fireman's "Right away!" to his mate in acknowledgement of a desultory wave of the unfurled green flag.

— When your partner is going through a tough time — whether on their own or with you involved — how do they manage those emotions? Do they bottle them up and repress their feelings, do they express them, or do they take them out on others? As [Dr. Marissa] Tunis explains, it's a major green flag if your partner "has done work on themselves" to be able to handle their emotions.