I told her to try not to smile and lean her head when talking. I'm pretty sure she thought my comment was intrusive, but she improved her performance a lot when she stopped smiling all the time. Suddenly one could trust her...
Now I'm watching the woman who is trying to become Sweden's first female statsminister on TV. I bet she won't ever become a minister, because people hate her. I don't know why people hate her, but I know why I instinctively don't like her. When she answers a question she smiles. It looks like a mean smile to me. She looks like "you just made my day by asking a question to which I have prepared a really good answer". If she looks like that, it doesn't matter what she is saying.
Smiling is not always such a good thing, and in the wrong context it can be absolutely devastating!