• Giving up past activities such as sports, homework, or hanging out with new friends
  
  
• Declining grades

• Aggressiveness and irritability

• Forgetfulness

• Disappearing money or valuables

• Feeling rundown, hopeless, depressed, or even suicidal

• Sounding selfish and not caring about others

• Use of room deodorizers and incense

• Paraphernalia such as baggies, small boxes, pipes, and rolling paper

• Getting drunk or high on drugs on a regular basis
  
  
• Lying, particularly about how much alcohol or other drugs he or she is using
  
  
• Avoiding friends or family in order to get drunk or high
  
  
• Planning drinking in advance, hiding alcohol, drinking or using other drugs alone
  
  
• Having to drink more to get the same high
  
  
• Believing that in order to have fun you need to drink or use other drugs
  
  
• Frequent hangovers
  
  
• Pressuring others to drink or use other drugs
  
  
• Taking risks, including sexual risks
  
  
• Having "blackouts"-forgetting what he or she did the night before
  
  
• Constantly talking about drinking or using other drugs
  
  
• Getting in trouble with the law
  
  
• Drinking and driving
  
  
• Suspension from school or work for an alcohol or drug-related incident