Put it at the end of a short chat exchange, after a message alert cues the reply, then let an opened audio follow it so the conversation feels like a real thread, with it closing the exchange.
關於此聲音
This is a short WhatsApp audio clip built around the name Poeteiro.com, lasting about 4.7 seconds. It feels light and teasing, like a quick poetic nudge dropped into a chat, and it works best as a playful reply rather than a serious message.