As the years pass and Amerigo and Maggie eventually have an affair, they try to keep their adulterous behavior secret from their respective spouses who eventually become suspicious and jealous of the time and attention the two pay to each other. He smokes a few times. He also smokes cigars. Some people carry glasses of wine at a ball. Fanny and her husband have drinks.
Some people drink at a party.
Charlotte has a drink. People have wine or champagne at a dinner before a play, including Maggie and Charlotte. We see some drinks on a table as several characters play some sort of card game. In a visualization of a past indiscretion, we see that a man is having an affair with his stepmother. Amerigo doesn't let Maggie know that he and Charlotte were former lovers.