Signs of Anemia?

A group of medical students are having a bedside teaching session with Prof. (MO and HO just happened to be doing work at the table nearby)Prof: "In a patient that we suspect to have anemia, what clinical signs do we look for?"A: "Cyanosis."Prof: "Very good (sarcastically)..you can get out from the ward now. Make sure you prepare adequately before you come to my class again."B: "(shivering voice)