What does your face reveal about you, and who is the better judge: humans or AI?

"I never forget a face", "She's got an honest face", "You could see it in his face", and "She looks young for her age" are just a few of the often-used phrases suggesting that faces are important for our interactions with other people and what we think we know about them. But can people really remember faces as well as they think they do, and can we really tell someone's age from their face? Or can artificial intelligence (AI) do it better? And can we really tell if someone is trustworthy just by looking at their face? Research shows that humans exhibit a wide range of facial recognition abilities.