One-sided Twitter conversations

I'm being sucked in by Twitter. So much so that I complained to one friend that she never posts and she retorted with the fact that I'd not yet moved my Twitter widget to my sidebar. But that doesn't exactly address the title of this post...

Lat night I got to watch one side of several conversations. What was happening is one of my Twitter friends, person A, was obviously posting back and forth with one of their Twitter friends, person B. However person B isn't a friend of mine so I was unable to "hear" their side of the conversation. In this particular instance I was thinking that the conversation was more interesting this way but not knowing what the actual topic was, it just got me thinking.