Place it at the end of a fail sequence, after a cartoon slip sets up the joke, then follow it with Nelson's ha-ha to keep the reaction going before cutting to the next scene.
このサウンドについて
This is a short laughing clip lasting just under five seconds, built around a single burst of human laughter with no words or music behind it. It feels warm, silly and instantly lightening, the kind of laugh that makes a dull moment feel shared and playful rather than awkward.