We worked on our Social Thinking curriculum with Mrs. Hannon today. We learned about two "Unthinkables."
One-sided Sid changes likes to make people talk only about their own interests or themselves (know anyone like that, grownups?). They don't even notice when other people aren't listening to them anymore.
Un-wonderer is very similar....he tries to keep people from thinking about others. An example of an Unwonderer is someone who only talks about what they want to talk about. Someone who doesn't show any interest in others.
People can defeat these Unthinkables by looking the speaker in the eye, asking your friend social questions, staying on topic and asking "wh" questions (who what when where why).