As cognitive scientists have emphasized in recent years, cognition is embodied; you think with your body, not only with your brain. - Daniel Kahneman

Mood evidently affects the operation of System 1: when we are uncomfortable and unhappy, we lose touch with our intuition.
These findings add to the growing evidence that good mood, intuition, creativity, gullibility, and increased reliance on System 1 form a cluster. At the other pole, sadness, vigilance, suspicion, an analytic approach, and increased effort also go together. A happy mood loosens the control of System 2 over performance: when in a good mood, people become more intuitive and more creative but also less vigilant and more prone to logical errors.

There's literally no difference between a physician recognizing a disease from a "facial expression", and a little child pointing to something and saying "doggie".

Evaluating people as attractive or not is a basic assessment. You do that automatically whether or not you want to, and it influences you.