In order to make your introduction to an informal proposal more persuasive, you can "hook" the reader with a:

What will be an ideal response?

Informal proposals begin by briefly explaining the reasons for the proposal and by highlighting the writer's qualifications. However, you can make your proposal more persuasive by providing a "hook" that identifies a serious problem and promises a solution later in the proposal. Analyze your audience and evaluate what will engage it immediately in your report. Sometimes it is a good idea to put off writing your introduction until after you have completed other parts. You can then better connect your introduction to the content of your message and to your reader.