If you're talking about an essay, it is also called a thesis statement. To write one for and essay: State what you will be talking about in the essay. If you are talking about a story: Use interesting dialouge, an interesting statement, or ask the reader a question.
attention grabber is what will make the reader want to read your essays, or something/sentence that would grab the readers attention
The attention grabber
thesis statement
This story is awesome!
If you mean grabber as in an attention grabber as in a topic sentence of an essay, here are some good ways: use an interesting quote that has to do with your essay use a short suspenseful story
ur gay
"Discover the bone-boosting benefits of calcium!"
If you want to play volleyball you got to learn how to serve.
do you know someone with autism? you can start by telling a story.. or with the shocking statistics
It's a bird! It's a Plane! No, It's Superman!
i have a dream.....
restate your thesisreview the detailsreveal a connectionrelate back to your attention grabber