Why is not finding Denise's body on Hayward street a disappointment?

Disappointment is directly linked to one's expectations; when our expectations and the outcome do not match. The occasional disappointment doesn't normally trigger anger. The unwillingness to accept the reality – that you didn't get what you expected – is what triggers anger.

To view their body language, it's a huge part of spoken language as it can define what type of speech it is. For example if they have their arms close in they may not want to speak to you or if they are doing lots of hand gestures they are explaining something.