If you want to make a good first impression, smile at people. What does it cost to smile? Nothing. What does it cost not to smile? Everything, if not smiling prevents you from enchanting people.
Guy KawasakiKlout and various measurements of influence are fun. I love to see where I score on them, but there's a computer algorithm behind the calculation. If there's an algorithm, it can be gamed. Even if it's not gameable, you have to take a leap of faith that the number of followers, retweets, mentions, whatever really mean something.
Guy Kawasaki