According to the Associated Press, 22 percent of married men and 14 percent of married women have strayed at least once during their married lives. This means they have had sexual relations with someone other than their spouse. Depending on the side of the fence that you are sitting on -- potential cheater or concerned spouse -- there are some clear body language signs that point to adultery. As a cheater, you will want to check this behavior; as a suspicious spouse, you will find clear signs of your partner's infidelity in these signs.

Just as a news headline tells you whether you should read further, body language provides the first checkpoint in any type of questioning. Consider an impaired driving roadblock; aside from the smell of booze, an officer will pay close attention to three key indicators when deciding to pull you over for further investigation. The same holds true for a suspicious spouse. One, the eyes. Two, the hands. Three, body position.

Firstly, the eyes. Although this is mostly common knowledge, the lack of eye contact often reveals a liar or cheater. This makes sense because, for our entire lives we have been told that the "eyes are the key to the soul." As such, liars and cheaters will avert their eyes for fear of being found out. Plus, lying to someone while maintaining eye contact is extremely difficult for the non-seasoned liar. So, when asking a potential cheater about his or her infidelities, take note of their eye movement. If the potential cheater maintains eyes contact when answering a direct question about his or her behavior, it is less likely that an indiscretion (or several) has occurred. For the possible cheater, maintaining eye contact is of great importance when and if you are ever confronted by your partner. For the suspicious spouse, understand that most often than not, the answer to your suspicions can be answered through direct eye contact (or lack thereof!).

The second indicator; the hands. Professional poker players and investigators alike look for giveaways when someone is hiding something, whether a great hand or a crime, or an affair. Whether suspects know it or not, they behave differently when under pressure or when nervous. A lot of the time, this anxiety surfaces via the hands. If a suspect fidgets with another body part or any other item (like a pen) when asked about potential infidelity, chances are they are at least nervous about the line of questioning. And in most cases, it is unlikely that someone would be nervous about something unless they are at least partially guilty. As a suspicious spouse, take note of what your spouse does with his or her hands when you start discussing your suspicions. If you are looking to start an affair, take note of how you react (in particular your hands) when you find yourself in a situation that makes you nervous (like dealing with a difficult client or delivering bad news).

The third and final indicator is body position. Since most liars and cheaters don't intend on hurting their spouse, they try to put subconscious padding between themselves and their spouse, especially when discussing the possibility of an affair. In some cases, this might be something as simple as shifting your body so that it is not "square" with your interrogator's. Another common way to add padding (or a screen as it is also known) is by placing items between your body and your victim's; consider why bankers and lawyers usually sit behind a desk when they interact with others. Cheaters and liars might also put their hands to their neck or cover other vulnerable areas as subconscious "protection" from their lies. As a cheater, be conscious of these hard-to-notice technique when you are cornered by your spouse. As a suspicious spouse, watch for your spouse's use of padding or screening when you confront him or her.

With so many cheating spouses in the world, you may be wondering what makes the "movement" so exciting to so many people. If you are considering an affair, one of the first things you should do is browse the top dating sites. There, you can see just how many folks are in the exact same position as you -- people who are looking for affairs and discretion. When (and if) you are ready to take the next step, be mindful of the above-noted "giveaways."

Alternately, if suspect your spouse of cheating, the items discussed here will provide some insight into your spouse's infidelity.