Seriously, Hollanda, I think you and your friends should not cater to this woman. If she makes such a comment again, tell her, "It's what we're talking about. If it doesn't interest you, there are other places you can sit." And then go on with your conversation. She's not your friend, and etiquette doesn't demand you make accommodations for rude acquaintances. With any luck, she'll go off with her nose in a sling and pointedly ignore you.