I think it's more commonly known as "gray rocking", ie. pretend to be a gray rock. Don't make eye contact, don't smile or frown, don't show any emotional react

I think it's more commonly known as "gray rocking", ie. pretend to be a gray rock. Don't make eye contact, don't smile or frown, don't show any emotional reaction, reply in the most minimal, factual, emotionless manner possible.