Introductions

When introducing oneself in English, you can either say, "Hello", (or Hi) "my name is [your name here]", or you can say "Hello, I am [your name here]".

One joke in English is when the speaker uses "I am (adjective)" and other person may jokingly reply, "Hello, [adjective]", referring to how people introduce themselves in English.
 * Example: "I am hungry." "Hello, Hungry."

This should not be mistaken for a metaphor.