Why is Al Pacino sexy?

Is Al Pacino a tall man?
Is he well built?
Is he good looking?
Is he a funny guy that makes a lot of really funny jokes?
The answer to all these questions is a strong "no." Yet when we ask women what do they think of him we always come back with the same answer, "He is sexy."
How is this possible? It makes no sense. Good looking people are tall. They are muscular. They have symmetrical faces and smiles with white teeth. Al Pacino has none of that but is considered sexy.

It's obvious to me that being a sexy man and being a good looking person are two completely different dynamics. Looking at the surface of it we will say because he is a movie star. Well, Philip Seymour Hoffman is an amazing actor that has won some awards for his skills yet I've never had anyone refer to him as sexy.
So if it's not acting ability, or good looks, then can anyone be a sexy guy like him?
I think they can.
I believe that anyone can, everyone should, yet most don't. What I will further add to that is that most men have no desire to become sexy men. They desire to be strong, well built or good looking. They desire to be smart, academic, rich and successful. But never do they say to themselves, I want to be sexually attractive to women.

Here's some dialogue from 'Scent of a Woman'.
The character, 'Charlie' says the following to our buddy Al.

"You're a good looking guy, and you're fun to be with. You're a great travel companion. Sensitive, compassionate."
"Charlie, are you fucking with me?"
"Yes."

He is none of these things, is the secret in there?