CLEAN : WHO expert arrives at Wuhan airport as China virus probe ends

The transcript involves a brief interaction where Peter asks a question, followed by a discussion about sending a moment. The conversation ends with a request to move back and a note on having fun.

What do you think Peter is contemplating?

What does the speaker mean by 'I'm gonna send my moment'?

What is the significance of asking for 'a little back please'?

How does the dialogue reflect the mood of the conversation?

What can be inferred about the relationship between the speakers?