Well... if you are a girl and using weed... I wouldn't recommend it unless you want to gain lots of weight.
Usually, the girls I know smoke so they can keep their body slim, and when they go off it, they start gaining weight so they become trapped. Maybe doesn't apply to everyone, but there are case studies in my book. So one vote for no smoking. :^)
As for weed... it makes you lazy and fat. If you like having the munchies, or feel anorexic, that's your perogative, but whoever said weed ain't addictive is full of crap.
Just my two cents.