How does a Programmer start a (internet) chat

How do you solve the dining philosop.......

There are 10 types of people. people who.......

Did you hear the one about the programmer who's car got a flat? he .......

Mysql was going to a nosql part.......

"walking on water and developing software fro.......

Question : how do you tell an introverted computer scientist from an extroverted computer sci.......