Place it at the very start of a greeting scene, before anyone else speaks, then follow it with Okay Let's Go once the next character steps forward. Save FNAF Jumpscare Scream for the sudden turn later, when the welcome gives way to the scare.
關於此聲音
This is a short spoken greeting, just over two seconds long, delivered in a smooth, mock-formal voice that says 'Why hello there, old sport.' It feels playful and a little theatrical, like a character welcoming a guest with exaggerated politeness. The line comes from Dayshift at Freddy's, where that old-fashioned greeting suits its unsettling, game-world setting.