I act as if it's understood, has to be giiiiiirl.
One of my favorites too!
Of course there's the famous story about this song, when Paul and George were doing the background vocals to John's middle eight/chorus, George Martin asked them
what exactly they were singing in harmony there, it sounded a bit naughty, and they innocently protested "Oh, no Mr. Martin, we're singing "tOOt, tOOt, tOOt, tOOt"!
But I also like John's "It's Only Love", for a few reasons - one of them is that it has one of my favorite lines in pop music, just because it somehow got passed the censors:
"It's so hard, loving you"