<human>: Condense the text into a few key points

Allow me to elaborate.

Today was pretty slow at my place of employment and just like any other day at work, I start to space off.  As I was spacing off I started to hum a song, the song being [Leonard Cohen's Suzanne]  Eventually the humming became singing.  About three quarters through the song, a gentleman (mid sixties) approaches my register, I am oblivious to him until I finish the song.  He waits and listens until I am finished, and I finally acknowledge his presence.  I become very embarrassed and I apologize that I kept him waiting.

He smiles warmly and says "That's Leonard Cohen, is it not?"

I nod and tell him how much I listen to Mr. Cohen, and that I hope to write poetry as beautiful as his one day.

The gentleman half belches, half laughs after I say this.  He then proceeds to ask how old I am, I tell him 19.  He has another one of his belch/laugh fits, and pats me on the shoulder and says "Well you've got an old soul in ya, that's for sure."  

I ring him up and he's on his way.

I wonder if this comes up frequently with other people that are roughly in the same age group as mine.
<bot>: Upon boredom I start to sing a Leonard Cohen song at work, an older gentleman recognizes the song, and tells me I have an "old soul" to be singing, and appreciating, said song and artist.