Good conversation is more. Good conversation is, first of all, an exchange. It's trading ideas and observations in a way that enriches all participants. It's listening and responding to observations and interpretations from others and reaching joint understandings. Good conversation also is informal.
Informality gives permission to relax, open up and share.
It's OK to joke, or be kidded by others. It's OK to try out an idea that's not yet fully formed or tested. Good conversation is now. It's a way to fit in and connect to others, and to gain new perspectives. If we're lucky enough to be in the same physical space, we're also exchanging subtle communication cues from facial expressions and body postures about how we feel right now.