How to Be a Hamptons Houseguest

Photo: Mark Peterson/Redux for New York Magazine

The host may be barefoot, the atmosphere relaxed, but you’re just a misstep away from never being invited back. (Or worse: becoming a story they tell over dinner at Sant Ambroeus.) Liz Lange, who owns the Grey Gardens estate, has visitors all summer long and has thoughts on how her guests should behave. “Help yourself. I can’t ask if you’re hungry and thirsty all the time,” she says. As for house tours: “I expect to show you the bedroom...