How to read people - Graywolf Survival
Knowing how to read people to tell if someone is lying is a very important skill for preppers. This skill can not only help you with bartering for goods or making relationships, it can also help detect when someone's being deceptive or is intending to double-cross you, even if their words don't sound deceitful.
10 proven tactics for reading people's body language
10 proven tactics for reading people's body language.

Business Insider