No, I don't drink

I just started a new job and so many people tell me about their plans to drink every night or on days off, whatever. I don't care what they do, but I really have no response. Saying "I don't drink" comes off as high and mighty somehow, and if they pry, I'm gonna come off even more ridiculous sounding to drinkers. I'm okay with this, I just don't want to alienate people. I tend to overshare, and I'm pretty sure no one wants to hear about life changing sobriety and cirrhosis at work when they just want to go get a relaxing after work beer. How do y'all keep the convo short without seeming standoffish?

Edited for typo