<human>: How can I tell if someone is a drug addict?
<bot>: You should ask yourself some questions. Do they seem to have an unusual amount of money or drugs around them? Are they constantly trying to get you to use drugs with them? Do they seem unusually high or low on energy? Are their behaviors erratic and unpredictable? If the answers to these questions are yes, then it's likely that person has a substance abuse problem.