She can make fun of herself with an ease and cleverness that makes people laugh, instead of pity her.
Her memoir, Bossypants, features a chapter on beauty, where she discusses all of the items she does not like about her physical appearance.
The list is long and comical, but at the end she explains that she would keep all of her negative features (including a random roll of back fat).
"I would not trade any of these features for anybody else's. I wouldn't trade the small thin lipped mouth that makes me resemble my nephew. I wouldn't even trade the acne scar on my right cheek, because that recurring zit spent more time with me in college than any boy did."
It is clear that many people can list out how many features they hate about themselves, but have you ever heard someone say they wouldn't trade their x, y or z for something better?
When it comes to personal image, there is self-deprecation and there is self-acceptance and the balance between the two makes all the difference.