Place it over the walk itself, before any reaction, then follow the arrival with a SpongeBob Fail for a clumsy stumble or a Vine Boom when the reveal lands, keeping the walk as the setup for the payoff.
About this sound
This six-second cartoon walking effect turns a plain walk into a string of quick, exaggerated movement noises, from wobbly steps to frantic tiptoeing and an awkward shuffle across the screen. It feels playful and chaotic, turning a simple entrance into a ridiculous joke and telling viewers straight away not to take the moment seriously.