I think Kristin is a very normal person as stated in the first post. I really don't think that the fact that she's now a famous TV actress has gotten to her head so I'd say she's pretty down to earth, friendly and nice.

And because she has stated that she is quite passive and anti-social and made reference to the fact that other girls at her high-school thought she was snotty, I believe that she probably wouldn't be the easiest person to get along with - not in a bad way, just difficult to get to know her.

I think she knows she's gorgeous and hates the attention she gets for being that beautiful which we can see in that scene in Snow White where shes says "Beautiful. What is that? I hate that." She was so 'real' in that scene, so much so, that I got the feeling that she had a close affiliation with her character (and I couldn't have come up with a better choice to play Snow White by the way!)