Lesson 4
  Rule: When you buy a gift-make sure its up-to-date.
  Barry recognized Vanity Plait from across the room even through the thick clouds, blue in the neon light; although it wasn't easy since everyone in this time period had phones in their heads.
  He sidled up to her bar stool. "Your phone." She snatched it back and carefully returned it to its cradle. Barry then ordered two Seven and Sevens-his favorite drink since getting served at fourteen at his cousin's wedding.
  "We don't have any of those," said the man behind the bar, whose head began ringing.