i don't drink at all and my bffs drink very little very occasionally and tbh they're not different from usual when they do....just a bit more..absent-minded than usual:
[Bff: *Says something*
Me: Mhm
Bff: *Repeats it again*
Me: Mhm
Bff: Did I say that already?
Me: Yeah
Bff: Ah, my bad
*long silence*] <it's very cute actually>