President and family arrive in Poland

What is the significance of the phrase 'Oh hey' in the context of communication?

How might the tone of 'Oh hey' change depending on the situation?

In what scenarios would you use a casual greeting like 'Oh hey'?

What emotions or feelings might be conveyed through the greeting 'Oh hey'?

How does the use of informal greetings like 'Oh hey' affect interpersonal relationships?