Final answer:
Liesel tastes champagne for the first time in 'The Book Thief' and decides never to drink it again due to the unpleasant experience of feeling sick after consuming it.
Step-by-step explanation:
In The Book Thief, Liesel tastes champagne for the first time during the celebration at her foster parents' home. Unaccustomed to the taste and feeling of alcohol, Liesel ends up feeling sick, which likely contributes to her declaration that she will never drink it again. The bitter experience with the unfamiliar beverage marks a memorable moment in the narrative, and Liesel's aversion toward it is both a personal preference and a reaction to the unpleasant physical effects she endures.