That's a tough one. I would have to say it's getting into the subjects head - sort of. I become a part of the person I'm drawing and feel like I know them just a little bit better after I complete a piece. Superficially, I love drawing older men because of all the character lines and the texture of the skin. Women tend to cover up their character with makeup so even when I draw one, I never really know what they look like or what kind of life they have had. Cheers!