How to spot a liar

According to a new study, you can't tell whether someone is lying based on how shifty their eyes look. Well...crap. That was our go-to.

Curious to know how to really spot a liar, we consulted body language expert Lillian Glass, PhD, author of The Body Language Advantage.

Here are some tips...

• Shoulder shrugs: Whether it's your man, a stranger, or a friend, shoulder shrugging subconsciously signifies that someone doesn't believe what they're telling you.

• Lip-licking: When someone is nervous (like when they're, say, lying their pants off), their mouth becomes dry—they lick their lips as a result.

• Leaning back: Liars subconsciously want to put physical distance between you and themselves, so they lean their heads back a little.

• Fidgeting: Liars are prone to shuffling their feet, playing with their hair, and fidgeting with their hands—it's an easy way for them to release nervous energy.

• Brush-offs: Wiping their hands down their arms or legs is a subconscious way of getting rid of the dirty feeling associated with fibbing.

• Pursed lips: Puckered lips are a sign that someone is holding back information—especially if they make the move after you ask them a sensitive question.

• Lip-biting: Sure, some people just bite their lips out of habit, but doing it right after you ask them a question can be a sign that they're about to lie.

• Blowing out air: Just like brushing themselves off, blowing out air is a subconscious way to get the icky feeling associated with lying out of their bods.