Put it at the very end of a farewell sequence, after the Inception Horn has built the drama and before Careless Whisper closes the scene, so the plea becomes the last spoken moment before the music takes over.
Über diesen Sound
This is a brief spoken line, just over a second and a half long, in which a voice delivers the words Don't forget me with quiet urgency. It feels wistful and lingering, like a farewell that asks to be remembered rather than a joke. The clip comes from Xenoblade 2, where the line carries that same parting weight.