Place it at the end of the helpful moment, once the favour is complete, so it closes the scene rather than opening one, then follow it with Okay Let's Go to move the action forward instead of letting the thanks hang.
Über diesen Sound
This short 2.7-second clip features King K. Rool saying “Yeah! Thank you!” in a big, cartoonish voice. It feels playful and exaggeratedly grateful, the kind of thank-you that lands as a joke as much as appreciation. The line comes from Donkey Kong 64, where the Donkey Kong villain delivers it with theatrical delight.