What is conversation for anyway? I don’t even recommend being charming, or trying to be charming, unless a work situation is forcing you to do so. Let yourself be sullen when the mood beckons. Feel free to let eye contact lapse. Don’t repeat back what you’ve heard. Say something surprising. Be willing to go meta. Most of all, try to establish a “we actually can have a more genuine conversation than we thought was going to be possible” level of understanding, taking whatever chances are needed to get to that higher level of discourse.
Original source: How to have a good conversation