My tip is to only drink white wine in public, red wine in private. Although most prefer the latter, white wine will not - stain your new fab dress, your host's cream colored sofa, your pearly whites, etc...The list goes on but remember the last time you knocked back a couple glasses of red in between trips to the ladies room only to stare at your reflection and see The Joker's stained lips and wonder if that window is painted shut.