Elon Musk learned social cues from reading books because he had no friends as a child

• Elon Musk was bad at understanding social cues as a child because he had no friends in school. 
• As a result, he picked up social cues from reading books, according to his new biography. 
• As a teenager, Elon Musk followed his sister around to clubs and parties so he didn't have to be lonely.

Billionaire Elon Musk was a lonely child because he struggled to make friends in school and this also meant he had a hard time understanding social cues, according to his new biography penned by Walter Isaacson.