Which Successful Comedians Have This Specific Trait?

Recently I stumbled across an interesting new program that I’m pretty excited about called Extrovert Me. But I am not convinced that folks know what extroversion is or why it matters as a comedian (no, it’s not some sort of sexual fetish). So, let’s test your knowledge. Below are 4 YouTube stand-up comedy videos of comedians that you probably know or have heard of.