What are the signs of cigarette addiction?

The signs of addiction to cigarettes include:

• smoking more than seven cigarettes per day;
  
• inhaling deeply and frequently;
  
• smoking cigarettes containing nicotine levels more than 0.9mg;
  
• smoking within 30 minutes of awakening in the morning;
  
• finding it difficult to eliminate the first cigarette in the morning;
  
• smoking frequently during the morning;
  
• finding it difficult to avoid smoking in smoking-restricted areas; and
  
• needing to smoke even if sick and in bed.

Source:
http://www.medicinenet.com/smoking_and_quitting_smoking/page2.htm#tocc
-Say Goodbye to Smoking-