Place it just before a reveal or entrance, then follow it with an Anime Ahh reaction once the character appears, and use Tuturu later in the same edit for the greeting that follows the introduction.
このサウンドについて
This 1.7-second clip is a single voice shouting the name Pairo in Japanese. It feels sudden and urgent, like someone calling out across a room and demanding an instant reaction, which makes the shout funny and startling when it lands unexpectedly out of context in a conversation.