I just had this happen and I was nervous too....I ordered a club soda (after going to the bathroom ahead of time to let the group settle) I positioned myself to be asked 'later' (not first), what I wanted, and later, when I was offered a drink, I said I had to get going soon and no one cared that I didn't drink. I will say, strangely, I did notice (not judge, noticed), a co-worker quickly drank 4 straight vodkas shots, not a beer whatsoever, within the first hour of said Happy Hour, and I would say, that's what was being noticed. As well, he came to work and had to leave early b/c he felt quite ill. I felt sad to see that, but was a reminder that I was doing the right thing! I do think that sometimes people will bluntly ask and in that case, less is more, so have fun, be confident, and Congrats on 57 days! Awesome job!