Being around smokers seems to be a big thing because a girl I know who is consistantly TRYING to quit seems to relapse every time she goes out of time to see old friends who invariably smoke.
The fact is that its much less the physical addiction than it is the mental one, I think. At least that's what she says, and I imagine it must be since she at the ripe age of what, 21, has been trying to quit for what seems like years.
Me? I never started. Thank God.