The Social Navigator: The one who knows everything about everyone. The information is usually accurate, but if you ask about someone, be warned that bit of information is added to the memory bank. Frieda will probably find out in the not too distant future that you asked about her.
The Nozall: The one who knows everything; about anything- or at the very least, they think they do and aren't shy about telling the world. They are best at giving unsolicited opinions at the most inconvenient times.
The OhIKnow! "Oh I know exactly what you're saying! When that happened to me ____." Should be noted that when 'it' happened to them, it was better, worse, more devastating, or more life changing that it was for you. One-up-manship is a necessity.
The Filler: This person has a speaking habit (myself is included in this group) that involves a phrase or word that is used to cover the gaps in their sentences. Examples include- um, well, you know, like, so, sorta, ya see, and then, etc. Common malady of professors and teachers.
The Glamor Queen: She always looks perfect. Bonus points if she is one of those nice people that you just can't hate, as much as you wish you could...
The Honey Pot: This person has the gift of proximity. People just want to be around them. Can attract nice people, or not nice people, but they will interact with them all the same.
Dear Abby: Male or female. The one who attracts everyone and their problems. People may or may not need/want/follow the advice they are given, but Dear Abby is a patient soul, and is willing to listen to the fallout from whatever decision is made.
The Hand-Off: Always in the midst of a crisis, but it's never their fault. It's always the people around them. They will probably tell you everything, and REALLY hope that you are going to try to fix it, and then they'll want to know what's taking so long...