I wasn't very indiscreet and yet
That is a notion that I might as well forget
Friends look at me these days with fond surprise
But when I start to speak they roll their eyes

Let me tell you about her
Hush now, I've said too much
There's something indescribable I can't quite catch
Let me tell you about her
The way that she makes me feel
Then draw a curtain on this scene I shan't reveal
[ Lyrics from: http://www.lyricsfreak.com/e/elvis+costello/let+me+tell+you+about+her_10100588.html ]
Some things are too personal
Too intimate to spill
And gentlemen don't speak of them
And this one never will

I wasn't very conversational
Accept to say that, "You're sensational"
Friends now regard me with indulgent smiles
But when I start to sing they run for miles

Let me tell you about her
Hush now, I've said too much
There's something indescribable I can't quite catch
Let me tell you about her
The way that she makes me feel
Then draw a curtain on this scene I shan't reveal