He said Introtims were shy. This is WRONG. We all know it here.
He said Introtims were unsociable. Most people here think it's wrong, but I think it's true.
It's evident to say that IT types lack social skills. They may show expressiveness or assertiveness, right, but they aren't really "socialising" people. Why ? Because as Rick said, Extrotims create new contacts and Introtims focus on contacts, but not much creating them. And as Extrotims accept others how they are, Introtims don't.
But auxilliary types ? Let's do an explaination :
ESE's and EIE's are known to be VERY sociable, especially women. SEI's and IEI's have some social skills, but they don't much feel a need to socialise with others. They love you or hate you, and are more inclined to maladaptive behaviour or autistic communication than (especially when in stress) Extrotims.
My dad is the leader of his company, and he's an ESI. His company is progressively going to bankruptcy. He explained how I can help him : by a little job.
But he gave me only somehow 60% of the information required to make me understand what the job would be, and he was barely understandable. I didn't understand because of the poor quality of information. He started to yell at me because he thought that if I wouldn't understand what that job consists, how he explained, I would be a retard. I was then inclined to refuse that job.
Later, my mom (EIE) re-explained me that deal, and I began to understand somehow. I accepted then. Basically because my dad has an autistic style of communication, and my mom hasn't.
Therefore, Extrotims are more sociable than Introtims. This is true, believe me. I don't think Eysenck was an awesome dude, but I think he was right, at least on that point.