when you say nothing at all

The phrase "when you say nothing at all" is recognized primarily as part of the lyrics from the song "When You Say Nothing at All," famously performed by artists such as Alison Krauss and Ronan Keating. It conveys the idea that sometimes silence or subtle gestures can express deep feelings more powerfully than words. If you meant the phrase in a different context or need more specific information, please let me know!