Have a lighter...be careful where who you smoke (it is illiegal after all, not everyone is chill with it), have some good tunes, surround yourself with some good friends, have a drank for kottonmouth....and have a good time.
Remember to inhale, it's a very important part of the smoking process, drawing the smoke into your mouth is not inhaling, drawing the smoke into your lungs is inhaling, and then hold for a few seconds Cottonmouth sucks, bring water or some kind of liquid
the most serious consequence of using drugs is being anally raped in prison...but that probably wont happen to you
don't expect to get high the first time, but you still may experience the physical effects (red eyes, hunger, cottonmouth) 2nd time, however, is a blast
play it cool. don't be annoying and shit if you can help it so people will want to continue smoking with you. some first timers can make a fool of themselves esp. if your with sort-of friends.
that didn't happen to me, i was high as a mofo my first time. as for the OP; all i got to say is don't drink the bong-water. just keep chill with some tunes, have stuff to do, have friends around, highs with these factors are the best for me. yeah, just don't go around ANYONE your first time other than friends. - that's all i got. good luck.
Ok how do you know if it is laced with something or is there no way to tell? I guess thats the thing im most nervous about? Im really not wortied about it being illegal. After all its illegal for me to drink but i already do that. How do you know when you have smoked enough? I really dont mean to sound sheltered but i really have just never done it before. I have plenty of friends who do it.