According to Osho, silence becomes more vivid when speech occurs: words provide the dark borders that reveal the bright, empty gap between them. In total quiet you may overlook silence, like a white mark on a white wall, but during speaking the pauses shine forth. Attend not to the meanings of words but to the silent intervals—there the real communication and presence happen.
Talking makes the quiet parts between words easier to notice, so listen to the pauses, not just the words.