Some people are just lousy liars and even a layperson can tell. But think of the Bernie Madoffs or other seemingly responsible people; they lied through their teeth daily but almost no one caught on until it was too late.
The singular thing I learned from Ronald Reagan was "trust but verify".
I used to be lied to in relationships, which makes finding someone who is pretty much incapable of telling a lie a pretty sweet deal.
So how do you think your lie-detector radar is?
Why people lie — and how to tell if they are
How To Tell if Your Spouse is Lying
Your Slogan Should Be
Roger. Uncommonly Made, Uncommonly Good.