What are your goals as a writer? (This answer can include the kinds of writing you would like to do, the kinds of audiences you would like to reach, the writing skills you would like to master, and so on.)
Why do you want to join a writing group?
What kinds of things do you think a writing group will help you do better?
How do you think you can help others in your writing group?
What, for you, would be the best possible outcome of your involvement with this writing group?