Should online dating agency photos include a smile?

While women should always smile in the photographs they post on online dating websites, men can get away with a more sullen look, it has been claimed.

According to OneIndia, the "smile of a girl is priceless", but this is not the same for men.

In fact, a study conducted by Sam Yagan and his colleagues found that males who were not looking directly at the camera in their profile picture tended to have more success, the news provider reports.

Similarly, the myth that low-resolution or mobile phone photos are not as successful was also found to be untrue, as the research team discovered that these also got plenty of results.

"The new survey suggests with all other things equal, whether or not you show your face has no impact on the number of messages you receive," the publication adds.

Meanwhile, the same news provider recently reported that online dating websites are particularly useful for those who are looking to find love within a particular community.