Place this clip right after the on-screen favor happens, as the reaction beat before the video cuts away. Follow it with a funny ha ha laugh when the thanks is meant as a joke, or precede it with a nico nico nii for a double anime voice gag.
O tym dźwięku
This is a 2.9-second voice clip of a drawn-out 'arigatoooouuu', the Japanese word for thank you stretched far beyond a normal delivery. It feels funny and sweetly over-the-top, turning simple gratitude into a deliberately dramatic performance that lands as sincere, goofy and a little awkward all at once, which is exactly why it works as a reaction.