Lie detector expert and former federal law enforcement investigator Janine Driver tells us the subtle ways to spot deception.
1. He Sounds a Little Funny
Liars are sometimes called "fast talkers," but the speed of their speech varies as much as an honest person's within a conversation. Yet liars will alter their speech rates within a single sentence. Typically a liar might begin to speak slowly, because he's trying to figure out his lie—but once it comes into his head, he tries to spit it out as fast as possible.
Pace isn't the only speech pattern that can trip up a deceiver. Research has shown that a person's vocal tone will waiver from baseline in up to 95 percent of all deceptive statements. If your partner's baritone is on the rise, you may be facing a fib.