Place it at the end of a reunion or farewell scene, after the goodbye has landed, then follow it with Kids Cheering to turn the promise into a celebration. For a gentler close, let Sad Violin play first and use this line as the final reply that follows it.
About this sound
This short Portuguese voice clip delivers the line 'Vamos ser amigos para sempre!' — 'let's be friends forever' — in just under three seconds. It feels sincere and sweet, like a playful promise between close friends, carrying the warmth of an offered hug rather than a punchline.