Have a stupid event to go to and trying to think of best drinks to have that won’t be noticed?

I have a work event today that is with the most boring group of people you can imagine. It’s not even really a networking thing, more of a post work get together? Idk it’s stupid. My friend and I are going to bring mixed drinks but don’t want it to be obvious. Not even that we can’t drink there, it’s that these bitches are so boring/judgmental id rather not deal with it.

So what is the best drinks to bring around in a yeti that people wouldn’t smell or anything??