Scientist over at M.I.T. are working on a watch that analyzes your conversation and vibrates to let you know when you're being boring or talking to much. Talk about the future!
It monitors things like your heart rate and blood pressure. And it will also monitor the tone of conversation you have by picking up on long pauses and how often you repeat yourself. Although you won't be able to buy one for the next couple of years, this is going to be a huge invention for so many people and things! From job interviews to people with Autism and Asperger's, who have a hard time in social situation, this is going to be GREAT!