Place it at the very start of an edit as the opening greeting, then follow it with a clapping sound when the character appears on screen. Keep it before the main joke or reveal, and save a second reaction for the ending so the hello frames the whole clip.
Über diesen Sound
This short clip, about one and a half seconds long, captures a Minion calling out “Bello” in a bright, high-pitched, drawn-out voice. The greeting feels cheerful, silly and instantly friendly, like a tiny yellow character popping up to say hello. It works as a quick burst of cartoon warmth that makes listeners smile before they even know why.