Having just renewed two government-issued IDs, I have been harshly reminded of what NOT to do when being photographed: stare straight-on at the camera, do a weird half-smile. As a beauty blogger, I've mastered looking cute in selfies, but as evidenced on my license and passport, when I don't dig into my bag of photo-posing tricks, I look The experience traumatized inspired me to investigate further why some people look so amazing in photographs. I picked three of my most photogenic Facebook friends they always look gorgeous! And, oh boy, did I get some good, extremely specific advice for you. Read on.
Check-in with a smile: Marriott, Alibaba trial facial recognition at China hotels
World's Best Asian Face Smile Stock Pictures, Photos, and Images - Getty Images
A smile is formed primarily by flexing the muscles at the sides of the mouth. Among humans , smiling is an expression denoting pleasure , sociability , happiness , joy or amusement. It is distinct from a similar but usually involuntary expression of anxiety known as a grimace. Although cross-cultural studies have shown that smiling is a means of communication throughout the world,  there are large differences among different cultures, religions and societies, with some using smiles to convey confusion or embarrassment. Primatologist Signe Preuschoft traces the smile back over 30 million years of evolution to a "fear grin" stemming from monkeys and apes who often used barely clenched teeth to portray to predators that they were harmless, or to signal submission to more dominant group members. The smile may have evolved differently among species and especially among humans.
The chain will work in a joint venture with Chinese e-commerce giant Alibaba Group to test facial recognition check-ins at two China hotels this month, the firms said on Wednesday, with ambitions for a global rollout later. China is spearheading the use of facial recognition for everything from helping control major live events to ordering fast-food, but also bolstering a growing domestic surveillance system that has raised fears among human rights activists of privacy being invaded. The joint venture said the new technology would help guests jump queues and cut the check-in process to less than a minute, compared to at least three minutes at a normal counter.
By Tie Oei, Eden Prairie. In a world where technology has mesmerized us and made its way into every aspect of our lives, Facebook has been a daily ritual for all of us. I have had people ask what is behind that smile regarding my profile picture.