Songwriters always reminded me of that kid at school who would go around with his guitar, like, "Yeah, songwritin' man," looking wistful. That wasn't me - those kinds of people put me off.
It's a very unnatural environment to be in, up on a stage. So you put up defenses to hide. Like looking at the ground with your hair in your eyes, or being tightly wound and quite aggressive and uncooperative, as I used to do.