either way, so long as she's not against it. i will smoke when i smoke and my friends are not gonna push me away, but i don't like smoking sat next to a couple of guys refusing, i feel bad, join in, be as high as me! you look so sad!
so yeah, if the girl wants to take the next hit, woop woop, and as said, weed tends to get girls turned on it would seem, and if they're happy to just sit and be around some second hand smoke without telling me off or complaining, then that's still good.
but as said, i don't think i'd be able to get into a relationship with a girl if she was against smoking pot. i'm against going to the pub on a wednesday night, then getting so drunk that you lose your phone, are sick in the hallway, and need looking after the next day, to me that's worse than sparking iup a doobie and sticking your feet up for an hour