Put it at the close of a short hobby montage, after music and dance clips, so trains finish the sequence. Follow it straight away with Bruh for a deadpan beat, then save Goofy Ahh Sounds for a second train joke later in the edit.
About this sound
This six-and-a-half-second clip is a voice listing three favourite things in a row, singing, dancing and finally trains, with trains named last. It feels cheerful and a little silly, the kind of earnest enthusiasm that makes a listener smile before the sentence has finished.