Red stares as she hadn't noticed his observations. Granted, she also knows absolutely nothing about alcoholism or biology or any of that so she'd never have noticed. Spirits in Purgatory can drink whatever, and it affects nothing. They're already dead.

"Holy shit, am I gonna kill him if I hand him another drink?"

No clue about how alcoholism works at all. She moves her gaze from the man to the newbie beside her, blinking a bit again at the brightness.

"...wait, are you a doctor or someone with a lot of experience with alcoholics?" Either way, she could definitely use some information about the full intricacies of alcohol damage on someone's body.