As a teen, Ive seen many people feel as if they have to smoke marijuana to be cool or to meet a girl and many other reasons. One of my friends started smoking and thought he was all cool and he changed. I was not the only one who noticed it either as he started doing stupid things like instead of paying back another friend he spent the money on drugs. Drugs clearly affect the decision making and behavior of people, and changing their behavior greatly. Unfortunately drugs have become a common part of our society that we will all have to deal with in our lifetimes, but from my point of view, people change when they get involved with them.