Put it at the very start of the edit, before any faces or titles appear, then follow it with a Chipmunk Laugh once everyone has reacted, or swap in a Yoooooooooooo greeting when the group entrance needs a second hello.
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This is a short spoken greeting in Portuguese, lasting about two and a half seconds, with a friendly voice saying hello to friends. It feels warm, casual and upbeat, like someone walking into a room full of people they know and getting everyone's attention in a good way, and it works as an easy hello rather than a joke or a shout.