Seven Common Signs of Lying

1. No eye contact. Generally, if someone is lying they will not look you in the eye, at least during a certain part of the conversation. Normally, people make eye contact for at least half of a conversation, so anything less than this could be suspicious. One caveat: there are some people who will take great pains to make eye contact with you even if they're lying, simply to make you think they're not.

2. Change in voice. A change in the pitch of a person's tone, or a lot of stammering (umm, ah), or throat clearing could indicate a lie.

3. Unusual body language. If a person taps their foot a lot, fidgets with their hands, raises their shoulders, turns away from you or brings their hand to their face (to touch their chin or nose, etc.) -- in other words, if they act nervous or uncomfortable -- it could mean they're telling a lie. Also watch out for blushing (or becoming pale) and increased blinking.

4. Something sounds fishy. Making statements that contradict each other, are inconsistent or don't sound quite right are usually part of a lie.

5. Overly defensive. Sometimes when a person is lying they will become extremely defensive, refusing to answer any questions and even accusing you of lying. This may mean they have something to hide.

7. Changes subject easily. If someone is lying and you change the subject, chances are high that they'll go right along with it. A person telling the truth, however, will likely ask why you changed the subject and want to go back to it.

8. Humor or sarcasm. A guilty person will often try to change the subject using humor or sarcasm.

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