My brother once told me a story about for a job he was pursuing that led to him having dinner with the CEO. The dinner went well, and my brother was hired soon after. In a later conversation, the CEO confessed that the main reason for the dinner was to see how my brother treated the restaurant staff. If he hadn’t given them eye-contact and thanked them, he wouldn’t have been hired.
I’m typically suspicious of using brief moments to judge a person’s character, but this is a pretty good list.
“I wish somebody had told me these things when I was younger. I now practice them when I need to get a fast assessment of people I don’t know well.”