Even the best online detectives would probably have trouble decyphering these images. Former FBI Counterintelligence Agent and the author of What Every Body is Saying, Joe Navarro, is an expert on nonverbal communication and body language. He's frequently asked by people on social media to analyze a photograph, usually, with no context, too.

"The request may be quite specific and demanding: 'Does she like me?' 'Do they look like they are breaking up?' 'Did he do it?' 'Are they more than friends?' And my favorite: 'Is he lying?' My answer is usually the same: 'I don't know, I can't tell,'" Navarro wrote.

"I can say that with ease because most of the time little or no context has been given to me. Plus, deception is hard enough to detect face-to-face (we succeed maybe 50% of the time—a coin toss); it is even more difficult, if not impossible, from just a photograph."

"Perhaps television is responsible for these assumptions—profilers depicted in TV dramas seem to be able to do this so easily. In any case, the photographs just keep coming," Navarro said.

"I will admit that there are times when a single nonstaged photograph speaks volumes about what is going on and how people feel about each other, or a photo reveals that there are some issues, but those are exceptions, not the rule. Photographs are notoriously stingy about revealing what people are thinking, feeling, desiring, or intending, especially if the image has been staged, so we must be cautious: we don't often know the precise context, nor what events have taken place before or at the time the photograph was taken."

Here are 10 things Joe Navarro suggests for those interested in nonverbal communication to think about when analyzing a photograph:

• Context is important. When was the picture taken? Where was it taken? Why was it taken? Who took it? And what was going on at that moment and that day?
• Was this a public or a private event and how many people, including the photographer, were present? Keep in mind that with politicians and celebrities, photo opportunities or presentations are very well-staged.
• Was the photograph taken with the subject's knowledge, or surreptitiously? This can make a big difference, as “nanny cam” photographs can attest.

• What took place prior to the photograph? In other words, are we seeing in the photo a reflection (legacy behaviors) of behaviors from 5, 10, or 20 minutes earlier? Humans aren’t spigots—we tend to carry with us negative emotions for hours and these eventually leak out nonverbally. So when we see a particular behavior on camera, we have to ask: Did something cause emotional distress or its opposite, euphoria, before the photo was taken?
• Is the subject shy or introverted, and did they resist or object to being photographed? I know some folks who smile all the time, but put them in front of a camera and they look absolutely constipated—they just don’t like their photo taken.

• Does this person like to be photographed, or are they accustomed to being photographed? This is significant because some people — politicians, in particular — will put on a great mask that may hide what they are thinking.
• If we are seeing displays of psychological discomfort or distancing, we must wonder why. Is it because of the picture-taking process itself? Those who are present in the photograph? Or perhaps even because of the photographer or someone else behind the camera? (This was how the mystery of the missing girl in Stieg Larsson’s The Girl With The Dragon Tattoo was solved.) In real life, some family photographers can be very annoying with their constant herding of people together for yet another photo and that accounts for some of the faces we sometimes see.