What part of speech is attention getter?

"Attention getter" itself is not a part of speech. It's a phrase that describes a technique used in writing and speaking.

The purpose of an attention getter is to capture the audience's interest at the beginning of a piece of writing or a presentation. It could be a:

* Question: "Have you ever wondered..."

* Quote: "As Albert Einstein said..."

* Statistic: "Did you know that 90% of..."

* Story: "One day, a young girl..."

* Anecdote: "I once had a funny experience..."

* Humorous statement: "I'm here today to talk about something that's probably the most boring thing in the world..."

The part of speech of an attention getter depends on the specific words used. For example, the attention getter "Have you ever wondered..." is a question that consists of a verb phrase and an interrogative pronoun.