Two Palestinian brothers killed when explosive device goes off prematurely, police

The video tutorial begins with a greeting and setup, followed by an acknowledgment of a mistake. It concludes with an expression of emotions and further communication.

What emotions might be conveyed in the phrase 'On the left'?

What is the significance of the greeting 'Hello' in a conversation?

How might someone feel when they say 'I messed up'?

What does the phrase 'Let him know' imply in a conversation?

What could be the context of the statement 'more sad'?