It's nobody's business why I don't drink. If I were not an alcoholic, I wouldn't give two seconds to worrying about what others might think of me not having an alcoholic beverage. I usually bring a 6 pack of gingerale or Perrier and say 'no thanks' to any booze that's offered. If some numbskull persists in offering me a drink as the event progresses, I might hit him in the shins with what's left of the 6-pack.