Kim Kardashian and Kanye West in Paris ahead of wedding

What do you think the person is trying to convey with the greeting 'Hey.'?

How might the tone of the greeting 'Hey.' change based on the context?

In what situations would you use 'Hey.' as a greeting?

What are some alternative greetings to 'Hey.' and when would you use them?

How does the use of 'Hey.' differ in formal and informal settings?