See this vid:
And these are the good ones. At least you know what they are before wasting any time with them. What, exactly, humans are has been well understood for a very long time. Here's what Cicero said in a letter to a friend in the 1st century BC:
"Everyone's real character is covered by many wrappings of pretense and is concealed by a kind of veil: face, eyes, expression often lie, speech most often of all."