Place it just after the peek is shown, once the viewer already knows someone was caught looking, then follow it with Oh My God Wow for the next beat and No No Wait Wait when the caught person tries to explain.
关于此声音
This clip is a spoken voice asking 'what are you watching?' over about fourteen seconds, delivered in a curious, slightly suspicious tone that sounds like someone has just caught you mid-scroll. It feels nosy and awkward in a funny way, turning a private moment into a joke and making the listener feel spotted, called out and a little embarrassed.