ServerWhisper is a whisper‑mode voice coach for casual dining servers, delivering real‑time upsell prompts through discreet earpieces during table‑side ordering. Mid‑market casual chains complain about plateaued check averages and inconsistent suggestive selling, while current training is static and quickly forgotten. ServerWhisper listens to the order (via table‑side tablet mic or beltpack) and quietly suggests high‑margin add‑ons or bundles tailored to that guest’s context. - Contextual suggestions: uses time of day, current items, party size, and promo rules to propose 1–2 relevant upsells only. - Micro‑training: post‑shift, servers see which upsell lines worked and practice with short, TikTok‑style playbooks. - Location experiments: HQ can push A/B scripts (e.g. dessert vs appetizer push) and measure impact on check averages. - Compliance guardrails: ensures suggestions align with alcohol policies and allergy disclosures. - Hardware‑light: works with cheap Bluetooth earpieces and existing POS/tablet mics; no big hardware rollout. This builds a moat via unique labeled data on what verbal scripts convert across demographics and concepts.