Less than a month after opening, Ama, the new Japanese-Italian restaurant by celebrity chef Brad Kilgore in Transamerica Redwood Park, should be saturating your social media feeds with big plates of koji-dry-aged wagyu beef and housemade pasta. It’s not—and that’s no accident. Instead of relying on foodies and influencers to spread the word about the new restaurant, Ama is kicking it old-school, letting word of mouth do the work. Phones aren’t exactly outlawed in the swanky new space ...