In day-to-day interactions with people, you’ll probably come across people who are willing to be a liar, either to get something they want or to cover up the real story. Sometimes they get caught up in their lies, but sometimes they get away with them if they play the game long enough. You may have someone in your life that you’ve always had an uneasy feeling about, or you just can’t get a good read on them.

To find out if they’re secretly pulling the wool over your eyes, look out for the following signs next time you think someone’s telling you a lie.

Here are 10 signs that might be a liar:

  1. They ‘re never making eye contact with you.

Because liars actually feel guilty inside, they feel very uncomfortable when others look in their eyes. They feel as if the other person can see through them, so that as much as possible they avoid long eyes with other people. To catch someone lying, watch where their eyes go; look at the floor, or look away from you when you talk to them? If so, there’s a good chance they’ve got something to hide, and they’re desperate to keep it a secret.

  1. They ‘re acting nervous around you.

No matter if a lie involves something significant or a small detail, a liar will usually act jittery and anxious about the person from whom he wants to hide things. They could talk faster to get the attention off, sweat profusely, blush or pace back and forth. They may not show any signs of guilt with an experienced liar, because they have become used to living in a lie. But if you start grilling them with questions, they may eventually crack under pressure.

  1. They ‘re looking troubled about something.

Liars tend not to smile as much as people who live authentically and tell the truth, no matter what the consequences. Lying puts a huge strain on one’s conscience and, as a result, makes one feel like they have two tons of bricks weighed down on them. This enormous pressure has to come out somehow, and it usually reveals itself on the face of the liar. Look at the person in question’s facial expressions – you’ll probably notice that they don’t show a lot of emotion. Eventually, the lies eat people up inside, and their usual temperament is a telling sign of how they really feel.

4. Things about their story just don’t add up.

After you hear their story, you intuitively feel that they’ve embellished most of it, or that they’ve just made the whole thing. For example, you might feel that your friend stole money from your wallet when you put your purse down to throw something away. While you can’t really prove it, you remember taking $100 out of the bank and not being able to find $60 when you hang out with her. When you accuse her of stealing from you, she insists that someone else has come up and taken the money. But why didn’t she tell you about this incident after it happened? Liars usually don’t have very good cover-ups for their stories, because they’ve got to come up with a fictional tale on the fly.

  1. They ‘re starting to get defensive.

If they didn’t have anything to hide, why would they get angry about you questioning them? People who tell the truth will act calmly when they are put on the spot and offer logical explanations of their behavior. Meanwhile, liars have to deal with all the turmoil they’ve created and must justify it in order to avoid caving under all the guilt. A liar will begin to show signs of anger; they may ball their fists, cross their arms, have an angry look in their eyes, or even make you feel inferior to boosting your own ego. Going to the defense almost always points to a person with an ulterior motive.

  1. They ‘re changing the subject.

Any mention of the lies they have said makes them feel uncomfortable, so they want to quickly take their attention away from themselves and bring up a more neutral subject. Usually, they make this quite obvious so that you start to get frustrated, making their whole scheme even more fun for them. Look out for these sudden changes to the subject, because that’s your chance to dig deep and ask them tough questions.

  1. They ‘re keeping noticeable physical distance from you.

Liars feel uncomfortable with human contact, because they secretly harbor a lot of insecurity and pain, and feel that any sign of care is going to blow their backs. They ‘re going to shy away from hugs or handshakes and keep a considerable distance between the two of you. This serves as a form of protection to them, because they don’t want to get too relaxed and accidentally reveal too much information.

  1. They begin to ramble almost uncontrollably.

Most liars can’t help but twist their stories into a convoluted tale that doesn’t make any sense in the end. They tell a few white lies, but they have to cover them up with more lies in order to keep the “facts” straight when, in reality, they make everything less credible. Liars usually come up with complex stories to convince you that they actually tell the truth, but this is a sure-fire sign of a liar in action.

  1. They can’t sit down.

Liars is fidget a lot. That’s because they want some distraction to take them away from the seriousness of the conversation, so they play with their phones, tap their legs, move around in their chairs, twist their hair, etc.

  1. They ‘re going to change their story later.

Even if they add or revoke small details, this further proves that there was no merit in their original story. They probably forgot most of the story they were telling since it never really happened, which means they can try and confuse you more with other things. If they’re trying to change their story, ask them what they initially told you – as they fumble across the details, you can rest assured that you’ve finally caught them in their own lies.