Place it at the exact frame you enter the scene, then follow it with a huh reaction for the person you interrupted, and finish with a no no wait wait clip if the bit turns into a backtrack.
このサウンドについて
This is a very short clip, just under three seconds long, built around the single Portuguese word Licença. It lands as polite but pointed, the kind of brief interruption that feels awkward and funny at the same time, like someone squeezing past or asking to get by without waiting for an answer.