Patrick Boyle lists Victor Lustig's 10 commandments for conmen

So what were Victor Lustig's 10 commandments for conmen?  Maybe they'll help us to spot frauds.

1. Be a patient listener.
2. Never look bored.
3. Wait for the other person to reveal political opinions, then agree with them.
4. Let the other person reveal religious views and have the same ones.
5. Hint at sex talk, but don't follow it up unless the other person has a strong interest.
6. Never discuss illness, unless some special concern is shown.
7. Never pry into a person's personal circumstances (they'll tell you everything eventually).
8. Never boast - just let your importance be quietly obvious.
9. Never be untidy.
10. Never get drunk.

~ Patrick Boyle, "Why We Trust Fraudsters!," YouTube, 20:15 mark, December 9, 2022

(Victor Lustig was a con artist who sold the Eiffel Tower twice and scammed Al Capone.)