The Best conversation you will ever have is with a stranger. Someone who is clueless about your existence and worries. Someone who is looking to find you inside. This automatically excites you, it always makes you want to reveal much more than you do to your close ones. This someone could be someone you would meet in your travels, someone who was there near you but remained a stranger.
But the sad part is, you will never have a proper conversation ( a good one) with someone who you really know.