It doesn't matter if you've been working in a brewery for 20 years, or if you just stepped foot inside a brewery for the first time.
Ask questions and get out of your comfort zone. Take some time to learn about the beer you're drinking, and the people you're drinking it with.
And for Pete's sake, stop judging your friends if they don't like whatever IPA happens to be trending that week.
Read what industry professionals have to say about it all.