Small talk is the bane of the nerd’s existence because small talk is a combination of aspects of the world that your nerd hates. When your nerd is staring at a stranger, all he’s thinking is, “I have no system for understanding this messy person in front of me”. This is where the shy comes from. This is why nerds hate presenting to crowds.
The skills to interact with other people are there. They just lack a well-defined system.
From The Nerds Handbook
Which seems to be more of a handbook for dealing with nerds than one for nerds to read.