4. College Jokes:  Your College days must have been fun filled but that does not mean, in your office happy hours you start talking about those funny tales of your college and moreover you should never say that your college mates acknowledge you with witty names. By highlighting such hilarious incidents at office happy hours you are sure to grab the maximum attention, but later you will find that you will be known in the office for such witty names rather than your great performance at work.