Body Language

Body Language tells a lot about someone's opinion of something.

The Head

Lowered- A Lowered head is a sign of defense, submission, tiredness, or concealment.
Straight- A Straight forward head looking at you could be a sign of interest.
Raised- A Raised head could be a sign of boredom
Tilted- A Tilted head could be a sign of interest curiosity, uncertainty, query, or vulnerability.
Overly Tilted- An Overly Tilted head could be a sign of someone's sympathy or trying to prove their honesty.

The Arms

Crossed- Crossed arms can be a sign of defensivness and mistrust.
Resting Behind Neck-Arms resting behind the neck can be a sign of someone's openess and that they are willing to listen and give an opinion.
Gestering- Someone gesturing their hands can either be a sign of total interest in the conversation or a sign of dismissal.
Twitching- Titching arms could be a sign of nervousness or restraint.