Place it at the start of a WhatsApp joke, after the WhatsApp Message Sound and before a reply clip such as Olha a Mensagem, so the greeting opens the exchange and the next voice answers it. Follow it with Abriu o Áudio when the joke is about someone finally listening to a message.
About this sound
This 1.3-second Portuguese voice clip greets Hildebrando Telles with a calm “boa noite” before breaking into a long, rising “ae hoooo” shout. The sudden jump from a polite evening greeting to an exaggerated, almost sing-song yell makes it feel playful, cheeky and deliberately over the top, like a friend sending a loud hello just to get a laugh.