The first cause is simple curiosity. Many teens have heard about drugs, and they are curious to experience them for themselves. They have heard that drugs can be fun, or make a person feel and act different. Maybe they have seen their friends or family members behave differently while on drugs, and they want to see how it really feels. We see drugs on TV and movies every day. Many young people encounter them at school, at home or in their neighborhood. It is not unusual to be curious about something you see and hear about so often, so many people first try drugs because they are curious about them.