Place it at the reaction beat right after a character walks in, then follow it with the rizz sound effect for a flirty tag, or precede it with anime wow to set up the surprise entrance before the cut.
關於此聲音
This is a 1.5-second vocal clip of someone singing the repeated phrase 'oh na na na' in a light, melodic hook. It feels playful and a little goofy, turning an ordinary moment into a silly singalong punchline. The uploader notes the audio was taken from a CheapPickle video.