Jack Reacher's Rules

A liar usually has all the signs on display: gulps, false starts, stammers, and fidgets.

The memory center is in the left brain, the imagination in the right—so a glance to the left generally means they’re remembering things; to the right, they’re making stuff up.

They’ll avoid eye contact, and touch or scratch their noses or ears.

Truthful people are perfectly capable of saying no, but generally they stop and think about it first. The one who says no immediately is usually lying.

“I can lie with the best of them … sadly.”