I don't like to take credit for strengths or talents that I can't analyze or describe. I will brush off compliments for things I'm probably good at, but don't really take pride in. If something comes naturally, I feel guilty being patted on the back for it. I want to earn my best qualities through practice, hard work, and thoughtful analysis.
On the other hand, I'm quite happy to take compliments on those traits I've sweated over and toiled for countless hours to improve!