Place it just after a search scene reaches its peak, then follow the reveal with It Was At This Moment He Knew to mark the realisation, and add Bruh only if the next shot needs a second reaction.
关于此声音
This six-second movie dialogue asks where Mater is and answers that he is right behind you, delivered in two quick voices with a playful pause between the question and the reply. It feels cheeky and surprising, like catching someone who was listening all along, and it works best as a light joke rather than a serious line.