The attention grabber you use is up to you, but here are some ideas:
This information must be true and verifiable, and it doesn't need to be totally new to your readers.
It could simply be a pertinent fact that explicitly illustrates the point you wish to make.
If you use a piece of startling information, follow it with a sentence or two of elaboration .
An anecdote is a story that illustrates a point.
Be sure your anecdote is short, to the point, and relevant to your topic.
This can be a very effective opener for your essay, but use it carefully.
An appropriate dialogue does not have to identify the speakers, but the reader must understand the point you are trying to convey. Use only two or three exchanges between speakers to make your point.
Follow dialogue with a sentence or two of elaboration .
A few sentences explaining your topic in general terms can lead the reader gently to your thesis.
Each sentence should become gradually more specific, until you reach your thesis.
If the attention grabber was only a sentence or two, add one or two more sentences that will lead the reader from your opening to your thesis statement.
Finish the paragraph with your thesis statement.
The conclusion brings closure to the reader, summing up your points or providing a final perspective on your topic.