I find it interesting that some people weren't born with the ability to know when the people they're talking to have lost interest in what they're saying.  They don't seem to notice the glazed-over eyes, the repeated glances at the watch or cell phone, or the gradual creep toward the door.  A simple rule of thumb is this:  If you've been talking for two minutes straight and you're not a teacher or professional speaker, you should shut up now.  A conversation involves two parties.  Otherwise it's called a speech. #psychology