How do you embrace other people's flaws....(READ this, its not shallow like it sounds)?

A lot is said about how, when you love someone, their flaws don't bother you. However, usually that means you find some trait endearing that OTHER people might find annoying. Thinking someone is sexy despite their tummy, or finding someone's awkwardness to be cute ... that isn't embracing people's flaws. That is having a natural inclination to like those flaws as they are. What about when you actually recognize flaws that bother you, annoy you or make you less attracted to your partner? What are some good tips to REALLY embracing people's flaws, instead of just finding the ones you actually like?