If she didn't know it was non-alcoholic, she could still get 'drunk' thanks to the placebo effect
Eru♪ Merry Christmas♪Ehehe♪...Wait a second.The party's at my home this year...I object...I'll get this non-alchoholic wine...Cheers♪Doubt it...I think I'll buy some Kalos-made wine and bring it back...The cheaper one...Just on a whim...I think I had too much earlier... I'm a bit drunk♪