i thought it was played like this:
you take 1 hit then pass and hold till the other person takes there hit
then when it comes back to you you take 2 hits and then hold till the other person takes there second hit
and so on and so forth
but the penilty for blowing out/ having a cofing fit/ whatever cause the smoke to come out is that on the next go around you get no hits and it just gose to the person who is suppose to be after you