Place it near the end of a shy character scene, after an awkward moment has landed, then follow it with an anime ahh as the next reaction in the sequence.
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Hitori Gotoh, nicknamed Bocchi, lets out a roughly seven-second laugh that opens with a short pfft and turns into light, gasping giggles. It feels unguarded and shaky, funny because she is usually so shy, with a nervous, surprised pride in it. The clip comes from Bocchi the Rock!, the 2022 anime about the socially anxious schoolgirl who joins a band.