Many people turn their phones away from others to protect their privacy. However, most of us don’t hide our phones from our spouses. This gesture is subtle, but it can suggest illicit text conversations. Cheaters are often protective of their phones; they don’t share their passwords, and they even change their passwords to keep their phones’ content a secret.

Push notifications are a nightmare for unfaithful spouses, because they may show snippets of conversation – from texts, emails, and so on – that could incriminate both parties. Spotting a suspicious push notification, or even noticing the sudden absence of them, can be suggestive.

Alternatively, did your spouse suddenly purchase a privacy screen for his or her phone? These make a smartphone’s screen only visible to the person directly in front of the screen. It could be a red flag.

An easy way to keep two romantic lives separate is to buy two separate phones. That way, the cheater doesn’t get confused and text the wrong person by mistake. The existence of this second phone is also a liability, even if it is described as a “work” or “emergency” phone.

Another technique is to purchase a separate SIM card, which can be switched out of phones that have been “jail-broken.” This is a lot of work and unlikely for most cheaters, but if you find a SIM card lying around, you may be able to extract its data by inserting it into another phone.

Any new entries for people or companies you are unfamiliar with could be a ruse. Call the number and see who answers. It’s a good idea to block your number. Tap or click here for 5 ways to block or hide your number when making a call.

6. Check the phone’s locations

As we become more reliant on GPS, you may also want to take a peek at your spouse’s location history. For Google users, the “previous destinations” menu option on the navigation system may chronicle your spouse’s movements; for Android users, the Google Timeline feature (found in the Google Maps app or Google Maps online) functions similarly.

If your spouse uses an iPhone, there is one place to be sure to look. Many people don’t even know this treasure trove of tracking exists.

You can find an iPhone user’s frequent locations in Settings, Privacy, Location Services, System Services and then Significant Locations. It takes a fair amount of effort to disable or delete these types of settings consistently, so if they are up to no good, you’re likely to find something.

You may want to turn off this feature on your own phone if this practice creeps you out. Tap or click here for steps on how to do it.

7. Find their phones

Many popular devices utilize some form of location technology and often it’s easier to have the service turned on than to disable it. If your spouse uses an Apple device connected to a family account and has enabled location sharing, you can locate their device by logging on to iCloud and clicking on Find My iPhone or using the Find My Friends app.

If your spouse uses an Android phone and is logged on to Google on a shared computer, you can type “Find My Phone” into the search bar, and you’ll be provided with the phone’s location. Other Meet24 profile services such as Life 360 offer similar tracking.

8. Search every letter of the alphabet

Cheaters would have to be pretty stupid not to clear the search histories on their browsers. If they routinely access dating sites, especially hook-up services like Ashley Madison and AdultFriendFinder, they will probably think to cover their tracks, unless they like flirting with disaster as much as attractive strangers.