Surprisingly enough, cheaters often suffer from low self esteem, causing them to continually look for validation and approval from others, and often others who are of the opposite sex. Cheating spouses also tend to play psychological games with their partners, accusing them of being the ones who are unfaithful in at attempt to take the focus off of their own transgressions and guilt.

While there's no one particular rule book to follow as to what a cheating spouse does or will do, there are definitely some obvious signs and changes that one should be able to recognize. Here are just a few of those changes to watch for that cheating spouses often make in their lives:

- Changes in appearance: Are your wife's nails always neatly manicured when before it wasn't ever a concern of hers? Has her hairstyle dramatically changed or is she now wearing more provocative clothes? Is your husband now suddenly overly concerned with his appearance?

- Changes in demeanor: A cheating spouse will most usually begin behaving differently in some way or another. Usually at the beginning of the affair, or when one is contemplating one, they will become more attentive to their spouse, which is, of course, due to the guilt they're feeling. It's also often said that women who are cheating will have a certain "glow" about them, similar to a giddy teenager "in love."

Other times, people who are cheating will go out of their way to avoid an argument at all costs and becomes either defensive or visibly nervous when the subject of infidelity is brought up or discussed.

- Changes in interest on the home front: A cheating spouse will most usually lose interest in family life, or things that go on around the house, or become noticeably lazy when at home. A man may take less interest in doing repairs or keeping up the appearance of the home, or take less of an interest in the kids, while a woman may also lose interest in housework, making dinner, or spending time at home. Both sexes may become indifferent when it comes to family gatherings or get-togethers, while others will avoid activities like attending church.

- Changes in grooming habits: By the time we're adults, most of us have adopted our own grooming habits and patterns that we follow on a daily basis. For instance, some of us shower in the morning before work, while others prefer to do so in the evening before bed, while others still may do both.

Regardless of the frequency of bathing or showering, a cheating spouse will almost always make subtle, or sometimes even noticeable, changes to their routine that's relatively easy to pick up on, provided you're actually looking, that is. Does your husband now wear cologne wherever he goes but never did before? Does he take it with him to the "gym"? Is he now showering as soon as he returns home, or before getting into bed at night?

Since everyone is different, not every person will fit the profile of a cheating spouse all of the time, so it's important to trust your instincts and intuition when it comes to finding out if your mate has indeed been unfaithful to you.