"I'll take a drink too, just because I wear a pendant don't mean I can't drink!" Derv says to Brickowsky, walking over and grabbing a drink for himself.
It's true some folks among the Devout might shun him if they knew he was touching a beverage but most of those folks shunned him anyway, he preferred the word "When in Greece do as the Greeks do." Though he wasn't sure where Greece was he'd decided it applied to everywhere.
He supposed he should do his die diligence and make sure the beer wasn't evil beer before consumption.
[ +- ] Divine Sense 0/3
The presence of strong evil registers on your senses like a noxious odor, and powerful good rings like heavenly music in your ears. As an action, you can open your awareness to detect such forces. Until the end of your next turn, you know the location of any celestial, fiend, or undead within 60 feet of you that is not behind total cover. You know the type (celestial, fiend, or undead) of any being whose presence you sense, but not its identity (the vampire Count Strahd von Zarovich, for instance). Within the same radius, you also detect the presence of any place or object that has been consecrated or desecrated, as with the hallow spell.
You can use this feature a number of times equal to 1 + your Charisma modifier. When you finish a long rest, you regain all expended uses.