We all know that virtual personas like Alexa, Siri, and the Google Assistant are not real humans. They can’t laugh the way we laugh, because they are not alive. But it does, in fact, makes sense for them to try to be social and emulate our behavior. They just need to get it right. Telling jokes, for example, is not an essential skill for an assistant like Alexa to have, but it will still cough one up if you ask.