Place it at the very end of your edit, just after the helpful moment has finished, so it works as the closing thank-you. Follow it with a short, cheerful sound to lift the ending, and keep it away from loud effects that would bury the spoken words.
About this sound
This short clip is a spoken Turkish greeting lasting about 2.7 seconds, with a clear voice saying 'Merhaba abi, Allah razı olsun' — hello, brother, may God be pleased with you. It feels warm, grateful and respectful, like a sincere thank-you offered to someone older or close, and it carries a friendly, good-natured tone that makes the blessing feel personal rather than formal.