There you go, good start point. . .

Knowing who is standing in front of you, This is something that needs to be closely watched. In my opinion you should never smoke with someone that you met in the past couple of months. Schools are cracking down, don't ignore the idea of a narc. Also, in this area, would be the friends that can sing like little J-bird. I say avoid any character that acts arrogant about the subject of smoking. This means, avoid the "Yeah I smoke the bomb daily" guy, the "Thats not how you smoke it" guy, and any other person that is just negative toward what you are trying to do. If these people talk crap to you, then it's a fact they will talk crap about you. Sometimes that can be with anyone. . .