Throughout the song, the right channel contains soft drum beats, ostensibly used to direct the brass instruments. There are also hand claps.
0:06
"Hah!" (left ear)
0:16
Edit in vocals, made audible by a cut off deep breath.
0:23
Sound, right
0:53
Someone grunts after sax stops playing (right)
2:25
Someone (John?) yelling "Lookout Lookout!" when the horses run by. Maybe this is John shouting "Good, Good!"
2:33
Where the "Good Morning" vocals fade out,there is an audible click as the vocals/brass stop. Just before this a voice, very quiet, says "Turn it off" (Right ear)