New Blood

Charley Pollard stopped in the doorway of the This Time Round, looked uncertainly at the clutched sheet of paper, and cautiously stepped inside. Her eyes opened wider with each step, as she got a good look at some of the denizens.
Adric watched her from behind the bar. "Uh oh. Looks like we have a new companion." he whispered to the asian woman at the counter.
Anji broke away from reading her copy of the Financial Times and glanced at the teenager. "Oh, how can you tell?"
"The simultaneous looks of disorientation, shock, and dismay are usually a dead giveaway."