Final Answer:
In the novel "One Hundred Years of Solitude," the Y. hosts subtly influence their feast visitors to leave by employing a peculiar method. They stir their coffee in a specific manner, which signals to the guests that the gathering has come to an end. This gesture prompts the guests to depart without any explicit indication or announcement.
Step-by-step explanation:
Within Gabriel García Márquez's novel, the Y. family hosts elaborate and extravagant feasts. When they wish for their guests to leave, they signal the end of the gathering by subtly stirring their coffee in a particular way. This action serves as an unspoken cue for the guests to recognize that the event is concluding, prompting them to depart without the need for any explicit announcement or indication.