Slightly... pathetic. I can't think of a better word. It always amuses me when I see girls teetering around on heels that they can't walk in. If you can't, don't wear them out in public. It's not sexy when you look like you're going to fall over with every step.
I don't think shoes say that much about a person, if I saw a girl wearing heels and was having a little trouble walking in them I would just think she was trying to hone her skill in being able to walk in heels, it doesn't make her a bad person just someone who isn't super familiar with high heels , this is such an insignificant flaw to highlight.