In Mexico, a plain gracias in answer to an offer can mean yes or no. In a guide published by Mexico News Daily in November 2024, Sarah DeVries describes her way around this. She asks: ¿Gracias “sí” o gracias “no”? The answer, she writes, is “almost always ‘Gracias, no.'”
The same guide lists other polite ways to decline. A lo mejor, “probably.” Déjame ver or déjame checar, “let me see” or “let me check.” Estamos en contacto, “we’ll be in touch.”