nah i don't like guys with any addictions. however i know my dad used to smoke socially with his friends in college, it is more like a bonding thing for them not a habit. well i def dont want to make out with a guy who tastes like an ashtray but if he smokes on the weekend with his friends at a hookah joint or once in a while, i wouldn't make a big deal...there are worse vices. i would just be clear that it's bad for his health and he better not come near me with that breath...but i wouldn't be a monster about it.